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Description
COMP Cams Camshaft Kit CRS 299T HR-7 BM K20-603-9COMP Cams Camshafts K20 603 9 Big Mutha' Thumpr 243 257 Hydraulic Roller Cam K Kit for Chrysler 273 360 K20 603 9 CamShaft Kit, CRS 299T HR 7 BM T THUMPR COMP Cams Camshaft Kit CRS 299T HR 7 BM Vehicle Fitments: Year Make Model Submodel 1965 Bristol 408 Base 1965 1967 Bristol 409 Base 1967 1969 Bristol 410 Base 1964 1965 Checker Aerobus Base 1979 1980 Chrysler Cordoba 300 1975 1983 Chrysler Cordoba Base 1980 Chrysler Cordoba Crown 1980 1982 Chrysler
COMP Cams Camshafts K20-603-9 Big Mutha' Thumpr 243/257 Hydraulic Roller Cam K-Kit for Chrysler 273-360 K20-603-9 - CamShaft Kit, CRS 299T HR-7 BM T THUMPR COMP Cams Camshaft Kit CRS 299T HR-7 BMVehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1965 | Bristol | 408 | Base |
| 1965 - 1967 | Bristol | 409 | Base |
| 1967 - 1969 | Bristol | 410 | Base |
| 1964 - 1965 | Checker | Aerobus | Base |
| 1979 - 1980 | Chrysler | Cordoba | 300 |
| 1975 - 1983 | Chrysler | Cordoba | Base |
| 1980 | Chrysler | Cordoba | Crown |
| 1980 - 1982 | Chrysler | Cordoba | LS |
| 1983 - 1989 | Chrysler | Fifth Avenue | Base |
| 1981 - 1983 | Chrysler | Imperial | Base |
| 1977 - 1981 | Chrysler | LeBaron | Base, Medallion |
| 1978 | Chrysler | LeBaron | S |
| 1979 - 1981 | Chrysler | LeBaron | Salon |
| 1980 - 1981 | Chrysler | LeBaron | Special |
| 1981 | Chrysler | LeBaron | Town & Country |
| 1979 - 1982 | Chrysler | New Yorker | Base |
| 1977 - 1978 | Chrysler | New Yorker | Brougham |
| 1971 - 1981 | Chrysler | Newport | Base |
| 1971 - 1976 | Chrysler | Newport | Custom |
| 1971 - 1972 | Chrysler | Newport | Royal |
| 1978 - 1981 | Chrysler | Town & Country | Base |
| 1964 | Dodge | 330 | Base |
| 1964 | Dodge | 440 | Base |
| 1964 - 1965 | Dodge | 880 | Custom, Base |
| 1964 - 1970 | Dodge | A100 | Base |
| 1970 | Dodge | A100 | Sportsman |
| 1964 - 1970 | Dodge | A100 Truck | Base |
| 1968 - 1970 | Dodge | A100 Truck | Sportsman |
| 1976 - 1980 | Dodge | Aspen | Base |
| 1976 - 1977 | Dodge | Aspen | Custom, Special Edition |
| 1975 - 1980 | Dodge | B100 | Base |
| 1971 - 1974 | Dodge | B100 Van | Base, Sportsman |
| 1981 - 1994 | Dodge | B150 | Base |
| 1995 - 1998 | Dodge | B1500 | Base |
| 1997 | Dodge | B1500 | SE, Custom |
| 1997 - 1998 | Dodge | B1500 | SLT |
| 1975 - 1980 | Dodge | B200 | Base |
| 1971 - 1974 | Dodge | B200 Van | Base, Sportsman |
| 1972 - 1974 | Dodge | B200 Van | Maxi Wagon, Maxi |
| 1981 - 1994 | Dodge | B250 | Base |
| 1995 - 1998 | Dodge | B2500 | Base |
| 1997 | Dodge | B2500 | SE |
| 1997 - 1998 | Dodge | B2500 | SLT |
| 1975 - 1980 | Dodge | B300 | Base |
| 1972 - 1974 | Dodge | B300 Van | Maxi Wagon, Maxi |
| 1971 - 1974 | Dodge | B300 Van | Sportsman, Base |
| 1981 - 1994 | Dodge | B350 | Base |
| 1995 - 1998 | Dodge | B3500 | Base |
| 1997 - 1998 | Dodge | B3500 | SLT |
| 1973 - 1980 | Dodge | CB300 | Base |
| 1970 - 1974 | Dodge | Challenger | Base |
| 1970 - 1971 | Dodge | Challenger | R/T |
| 1972 | Dodge | Challenger | Rallye |
| 1970 | Dodge | Challenger | T/A |
| 1969 - 1971 | Dodge | Charger | 500 |
| 1966 - 1976 | Dodge | Charger | Base |
| 1969 | Dodge | Charger | Daytona, SE |
| 1967 - 1971 | Dodge | Charger | R/T |
| 1971 - 1978 | Dodge | Charger | Special Edition |
| 1976 | Dodge | Charger | Sport |
| 1971 | Dodge | Charger | Super Bee |
| 1965 - 1970 | Dodge | Coronet | 440, 500 |
| 1965 - 1976 | Dodge | Coronet | Base |
| 1971 - 1976 | Dodge | Coronet | Brougham, Crestwood |
| 1971 - 1975 | Dodge | Coronet | Custom |
| 1966 - 1970 | Dodge | Coronet | Deluxe |
| 1967 - 1970 | Dodge | Coronet | R/T |
| 1968 - 1970 | Dodge | Coronet | Super Bee |
| 1978 - 1979 | Dodge | D100 | Adventurer |
| 1975 - 1979 | Dodge | D100 | Base |
| 1977 - 1979 | Dodge | D100 | Club Cab |
| 1975 - 1989 | Dodge | D100 | Custom |
| 1976 - 1978 | Dodge | D100 | Warlock |
| 1979 | Dodge | D100 | Warlock II, Estacas |
| 1968 - 1974 | Dodge | D100 Pickup | Base |
| 1964 - 1967 | Dodge | D100 Series | Base |
| 1977 - 1993 | Dodge | D150 | Base |
| 1981 - 1988 | Dodge | D150 | Club Cab |
| 1982 - 1988 | Dodge | D150 | Estacas, Adventurer |
| 1978 - 1979 | Dodge | D150 | Li'l Red Express |
| 1982 - 1983 | Dodge | D150 | Miser |
| 1982 | Dodge | D150 | RAM, Equipado |
| 1990 - 1991 | Dodge | D150 | S |
| 1977 - 1980 | Dodge | D200 | Base |
| 1975 - 1976 | Dodge | D200 | Custom |
| 1968 - 1974 | Dodge | D200 Pickup | Base |
| 1964 - 1967 | Dodge | D200 Series | Base |
| 1986 - 1993 | Dodge | D250 | Adventurer, Prospector, Club Cab, Custom |
| 1981 - 1993 | Dodge | D250 | Base |
| 1975 - 1980 | Dodge | D300 | Base, RD |
| 1975 - 1976 | Dodge | D300 | Custom |
| 1979 | Dodge | D300 | Estacas |
| 1977 | Dodge | D300 | RS |
| 1968 - 1974 | Dodge | D300 Pickup | Base |
| 1964 - 1967 | Dodge | D300 Series | Base |
| 1981 - 1993 | Dodge | D350 | RD, Base |
| 1982 | Dodge | D350 | RS |
| 1978 - 1981 | Dodge | D400 | Base |
| 1978 - 1981 | Dodge | D450 | Base |
| 1989 - 2002 | Dodge | Dakota | Base, Sport |
| 1989 - 1993 | Dodge | Dakota | LE |
| 1998 - 2002 | Dodge | Dakota | R/T |
| 1990 - 1993 | Dodge | Dakota | S |
| 1989 - 1991 | Dodge | Dakota | SE |
| 1989 | Dodge | Dakota | Shelby |
| 1994 - 2002 | Dodge | Dakota | SLT |
| 2002 | Dodge | Dakota | SXT |
| 1994 - 1996 | Dodge | Dakota | WS |
| 1964 - 1968 | Dodge | Dart | 270 |
| 1976 | Dodge | Dart | 360 |
| 1964 - 1976 | Dodge | Dart | Base |
| 1969 - 1975 | Dodge | Dart | Custom |
| 1971 - 1972 | Dodge | Dart | Demon, Demon 340 |
| 1965 - 1969 | Dodge | Dart | GT |
| 1964 - 1969 | Dodge | Dart | GTS |
| 1971 - 1974 | Dodge | Dart | Special |
| 1974 - 1975 | Dodge | Dart | Special Edition, Sport 360 |
| 1973 - 1976 | Dodge | Dart | Sport |
| 1973 | Dodge | Dart | Sport 340 |
| 1969 - 1976 | Dodge | Dart | Swinger |
| 1969 - 1970 | Dodge | Dart | Swinger 340 |
| 1975 - 1976 | Dodge | Dart | Swinger Special |
| 1977 - 1981 | Dodge | Diplomat | Base |
| 1977 - 1983 | Dodge | Diplomat | Medallion |
| 1978 | Dodge | Diplomat | S |
| 1979 - 1989 | Dodge | Diplomat | Salon |
| 1984 - 1989 | Dodge | Diplomat | SE |
| 1981 | Dodge | Diplomat | Sport |
| 1998 - 2001 | Dodge | Durango | Base |
| 1998 - 2002 | Dodge | Durango | SLT, SLT Plus |
| 2000 - 2002 | Dodge | Durango | Sport, R/T |
| 1968 - 1974 | Dodge | M300 | Base |
| 1978 - 1979 | Dodge | Magnum | XE |
| 1970 - 1974 | Dodge | MB300 | Base |
| 1981 - 1983 | Dodge | Mirada | Base |
| 1980 - 1983 | Dodge | Mirada | Special Coupe |
| 1968 | Dodge | Monaco | 500 |
| 1968 - 1978 | Dodge | Monaco | Base |
| 1974 - 1978 | Dodge | Monaco | Brougham |
| 1977 - 1978 | Dodge | Monaco | Crestwood |
| 1974 | Dodge | Monaco | Custom |
| 1975 - 1976 | Dodge | Monaco | Royal Brougham, Royal |
| 1968 - 1969 | Dodge | Polara | 500 |
| 1964 - 1973 | Dodge | Polara | Base |
| 1971 | Dodge | Polara | Brougham |
| 1970 - 1973 | Dodge | Polara | Custom |
| 1970 | Dodge | Polara | Special |
| 1972 - 1974 | Dodge | R300 | Base |
| 1974 | Dodge | R300 | Motorhome |
| 1994 - 1996 | Dodge | Ram 1500 | Base |
| 1994 - 2002 | Dodge | Ram 1500 | Custom |
| 1997 | Dodge | Ram 1500 | LT |
| 1994 - 1998 | Dodge | Ram 1500 | Lujo |
| 1998 - 2001 | Dodge | Ram 1500 | R/T |
| 1994 - 1997 | Dodge | Ram 1500 | Runner |
| 1999 - 2002 | Dodge | Ram 1500 | SLT |
| 1997 - 2001 | Dodge | Ram 1500 | Sport, Laramie, WS |
| 1997 - 1998 | Dodge | Ram 1500 | SS/T 5.9L |
| 1997 - 2002 | Dodge | Ram 1500 | ST |
| 1999 - 2002 | Dodge | Ram 1500 Van | Base, SLT, SE |
| 1994 - 2002 | Dodge | Ram 2500 | Base |
| 1995 - 2002 | Dodge | Ram 2500 | Custom |
| 1996 - 1997 | Dodge | Ram 2500 | Laramie |
| 1995 - 1998 | Dodge | Ram 2500 | Lujo, Limited |
| 1995 - 1997 | Dodge | Ram 2500 | Runner |
| 1999 - 2002 | Dodge | Ram 2500 | SLT |
| 1999 - 2002 | Dodge | Ram 2500 Van | Base, SE |
| 1999 | Dodge | Ram 2500 Van | SLT |
| 1994 - 2002 | Dodge | Ram 3500 | Base |
| 1995 - 2002 | Dodge | Ram 3500 | Custom |
| 1999 | Dodge | Ram 3500 | SLT |
| 1999 - 2002 | Dodge | Ram 3500 Van | SE, Base, SLT |
| 1974 - 1993 | Dodge | Ramcharger | Base |
| 1991 - 1993 | Dodge | Ramcharger | Canyon Sport |
| 1981 - 1993 | Dodge | Ramcharger | Royal SE |
| 1975 - 1980 | Dodge | Ramcharger | SE |
| 1978 - 1980 | Dodge | RD200 | Base |
| 1973 - 1974 | Dodge | RM300 | Base |
| 1971 - 1974 | Dodge | RM300 | Motorhome |
| 1971 - 1974 | Dodge | RM350 | Motorhome |
| 1975 - 1977 | Dodge | Royal Monaco | Brougham, Base |
| 1979 - 1981 | Dodge | St. Regis | Base |
| 1975 - 1989 | Dodge | W100 | Custom |
| 1968 - 1974 | Dodge | W100 Pickup | Base |
| 1964 - 1967 | Dodge | W100 Series | Base |
| 1977 - 1993 | Dodge | W150 | Base |
| 1990 - 1991 | Dodge | W150 | S |
| 1975 - 1980 | Dodge | W200 | Base |
| 1968 - 1974 | Dodge | W200 Pickup | Base |
| 1964 - 1967 | Dodge | W200 Series | Base |
| 1981 - 1993 | Dodge | W250 | Base |
| 1977 - 1980 | Dodge | W300 | Base |
| 1975 - 1976 | Dodge | W300 | Custom |
| 1968 - 1974 | Dodge | W300 Pickup | Base |
| 1964 - 1967 | Dodge | W300 Series | Base |
| 1981 - 1993 | Dodge | W350 | Base |
| 1966 | Griffith | 200 | Base |
| 1998 | Jeep | Grand Cherokee | 5.9 Limited |
| 1993 | Jeep | Grand Cherokee | Base |
| 1993 - 1998 | Jeep | Grand Cherokee | Laredo, Limited |
| 1995 - 1997 | Jeep | Grand Cherokee | Orvis |
| 1993 - 1995 | Jeep | Grand Cherokee | SE |
| 1997 - 1998 | Jeep | Grand Cherokee | TSi |
| 1993 | Jeep | Grand Wagoneer | Base |
| 1964 - 1974 | Plymouth | Barracuda | Base |
| 1970 - 1971 | Plymouth | Barracuda | Gran Coupe |
| 1964 - 1971 | Plymouth | Belvedere | Base |
| 1968 - 1971 | Plymouth | Belvedere | Satellite |
| 1965 - 1967 | Plymouth | Belvedere II | Base |
| 1970 - 1974 | Plymouth | Cuda | Base |
| 1970 - 1973 | Plymouth | Duster | 340 |
| 1974 - 1975 | Plymouth | Duster | 360 |
| 1970 - 1975 | Plymouth | Duster | Base |
| 1975 | Plymouth | Duster | Custom |
| 1976 | Plymouth | Duster | Sport |
| 1964 - 1978 | Plymouth | Fury | Base, Sport |
| 1971 - 1975 | Plymouth | Fury | Custom |
| 1968 - 1975 | Plymouth | Fury | Custom Suburban |
| 1970 - 1972 | Plymouth | Fury | Gran Coupe |
| 1972 | Plymouth | Fury | Gran Sedan |
| 1970 | Plymouth | Fury | GT, S-23 |
| 1974 | Plymouth | Fury | Police |
| 1976 - 1978 | Plymouth | Fury | Salon |
| 1970 - 1971 | Plymouth | Fury | Sport GT |
| 1968 - 1978 | Plymouth | Fury | Suburban, Sport Suburban |
| 1966 - 1969 | Plymouth | Fury | VIP |
| 1968 - 1974 | Plymouth | Fury I | Base, Suburban |
| 1965 - 1974 | Plymouth | Fury II | Base |
| 1968 - 1974 | Plymouth | Fury II | Custom Suburban |
| 1965 - 1974 | Plymouth | Fury III | Base |
| 1968 - 1974 | Plymouth | Fury III | Sport Suburban |
| 1972 - 1988 | Plymouth | Gran Fury | Base |
| 1975 - 1976 | Plymouth | Gran Fury | Custom |
| 1972 - 1976 | Plymouth | Gran Fury | Custom Suburban |
| 1980 - 1989 | Plymouth | Gran Fury | Salon |
| 1972 - 1977 | Plymouth | Gran Fury | Sport Suburban, Suburban |
| 1975 - 1977 | Plymouth | Gran Fury | Sport, Brougham |
| 1967 - 1968 | Plymouth | GTX | Base |
| 1975 - 1980 | Plymouth | PB100 | Voyager |
| 1974 | Plymouth | PB100 Van | Base, Voyager |
| 1981 - 1983 | Plymouth | PB150 | Voyager |
| 1975 - 1980 | Plymouth | PB200 | Voyager |
| 1974 | Plymouth | PB200 Van | Voyager, Voyager EX Wagon, Voyager EX, Base |
| 1981 - 1983 | Plymouth | PB250 | Voyager |
| 1975 - 1980 | Plymouth | PB300 | Voyager |
| 1974 | Plymouth | PB300 Van | Voyager EX, Voyager, Voyager EX Wagon, Base |
| 1981 - 1983 | Plymouth | PB350 | Voyager |
| 1968 - 1975 | Plymouth | Road Runner | Base |
| 1965 - 1974 | Plymouth | Satellite | Base |
| 1971 | Plymouth | Satellite | Brougham |
| 1971 - 1974 | Plymouth | Satellite | Sebring Plus, Custom, Sebring, Regent |
| 1968 - 1970 | Plymouth | Satellite | Sport |
| 1964 | Plymouth | Savoy | Base |
| 1971 - 1976 | Plymouth | Scamp | Base |
| 1975 | Plymouth | Scamp | Brougham |
| 1975 - 1976 | Plymouth | Scamp | Special |
| 1974 - 1981 | Plymouth | Trailduster | Base |
| 1968 - 1969 | Plymouth | Valiant | 100 |
| 1964 - 1966 | Plymouth | Valiant | 200 |
| 1964 - 1976 | Plymouth | Valiant | Base |
| 1974 - 1975 | Plymouth | Valiant | Brougham |
| 1975 | Plymouth | Valiant | Custom, Scamp |
| 1964 - 1969 | Plymouth | Valiant | Signet |
| 1967 | Plymouth | VIP | Base |
| 1976 - 1980 | Plymouth | Volare | Base |
| 1976 - 1977 | Plymouth | Volare | Premier, Custom |
| 1976 | Plymouth | Volare | Road Runner |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 4
6 switches not for left handers
Color: Grey
It's everything as advertised... However if you are left handed the thumb switches are pressed inadvertenly by how you hold the mouse... and you find it skipping to another page...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
★★★★★ 5
A Truly Ergonomic Mouse
Number of Items: 1
Other not completely flat mice claim to be "ergonomic", but the only way to completely remove stress from your forearm when using a mouse is with a "vertical" mouse. My 2020 K75575WW Kensington ergonomic vertical mouse developed a problem with the left button "stuttering" so that it sent multiple button clicks when pressed just once. I liked the Kensington quite a bit. But it always just a little bit on the "not quite as solid as I would like" side, and failing after just 2.5 years confirmed this. So I wanted a more solidly build mouse.
A search for "ergonomic mouse review" showed that the Logitech MX Master 3S was clearly the best ergonomic mouse available. At $100 it was several times more expensive as others including the latest Kensington vertical mouse. But sometimes furgal doesn't mean the least expensive. Sometimes it can mean the most expensive if that comes with better performance, features and lifespan. So I ordered it. And while it is indeed an incredible mouse, the angle is only about 20 degrees. The result is that while there is some reduction in forearm stress compared to a flat mouse, it wasn't enough for me. By the end of my very long days driving my mouse almost as much as I drive my keyboard, I could feel the tension building up in my forearm. So after a week I returned it and bought this Logitech MX Vertical.
It is slightly less expensive than the MX Master 3S, but still much more expensive relative to other options. And while it is lighter and a little less substantial feeling in my hand than the MX Master 3S, it still feels very firm and solid. Most importantly keeps my hand in the neutral position with my fingers at about 70 degrees. A great feature of the MX Vertical shares with the MX Master 3S is the thumb rest. The Kensington didn't have this and so my thumb rested on the desktop. If it was a bit warm and my hands would sweat my thumb wouldn't slide smoothly and I would have to lift my thumb off the desk when I went to move the mouse. Not a horrible thing, but if you spend 8+ hours mousing around it gets tiresome. The button clicks are crisp. Best of all when the button bottoms out it feels like it is pressing against the case. It doesn't feel like travel is being limited by the switch itself bottoming out like the Kensington felt like it did. My hope is that this will keep the switch from wearing out so fast as happened with the Kensington.
One slight negative of the MX Vertical is that I don't feel like I am quite as accurate in being able to move the cursor to a specific spot on the screen without some amount of conscious effort. Instead it doesn't go exactly in the direction I intended and overshoots where wanted it to stop. As such it might not make the best mouse for video games. [UPDATE: There is a bit of a learning curve in moving the mouse accurately. In the last couple weeks my need to make a more conscious effort to move the mouse to a specific spot on the screen is going down. Still think it is likely to not be as accurate as a flater mouse]
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Reviewed in the United States on February 13, 2023
★★★★★ 5
Ergonomic, Comfortable, and Highly Functional Mouse
Number of Items: 1
The Logitech MX Vertical Wireless Mouse is an outstanding ergonomic mouse that truly reduces wrist and forearm strain. Its vertical design feels natural and comfortable, even during long hours of use, making it a great choice for anyone concerned about repetitive strain or discomfort.
The mouse connects seamlessly via Bluetooth or the included USB receiver, and the ability to switch between three different devices is incredibly convenient for multitasking. The precision and smooth tracking make it excellent for both work and creative tasks.
Overall, this mouse combines comfort, functionality, and versatility in one sleek package. It’s well worth the investment for anyone looking to improve ergonomics and productivity.
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Great mouse
Number of Items: 1
Definitely reduces fatigue. Easy to use. Great response with less space needed for mouse movement. Stays charged for months you actually forget to charge it, ask me how I know :). I play video games with it and never have any issues with the movement and response time of mouse. And since my car wreck where I broke my thumb this is the only mouse that gave me the same as before the wreck abilities to move and operate the mouse. Highly recommend. One very broken thumbs up :)
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Experience after one year of usage
Number of Items: 1
I had mainly used a MX Master 2S before this and because of my heavy usage I did start to feel uncomfortable after a few hours of use every day and that's when I decided to purchase MX Vertical. Now after almost 9 months of usage this has become the mouse I use on a daily basis, completely replacing MX Master 2S.
Comfort: It took me about a day or two to really get used to using it because of the positioning and ever since then my wrist has never felt any discomfort, literally. I don't have a mouse pad but because of the angle that my wrist is contact with the desk when I use it, this has never been a problem. What I also love about the ergonomic design is that my hand can actually just rest on it when not doing specific tasks, and it just fits my palm perfectly.
Functionality: I don't use it for gaming so I can't comment on that. However, comparing it with my Master 2S, there are some very obvious disadvantages. If you use Excel sheets a lot, or anything that requires horizontal viewing, the scrolling option is terrible. You can set up the function key on Logi Options+ and I use the side buttons for scroll right+left mainly because how easy it was to use with the Master 2S's side scrolling buttons. It is not comparable at all. With Master 2s, horizontal scrolling is smooth and precise. With this, it's basically useless. There are sites that just aren't responsive to the side buttons and when they do, you can never get to the precise point you want. Huge disappointment with that because I don't really use the side buttons for anything else. There is also no scrolling control with the middle button unlike the Master 2S, so you can't really scroll vertically as fast as you can when using Master 2S either. However I do use the middle button sometimes to just do the job for me so I'm ok with its basic functionality.
The top button is mainly used as a look-up button for me, so far its working pretty well and honestly it probably makes not much difference if they just completely take this button out for me. Maybe some people can find use in it as a switch for scrolling or mouse speed, or something else. Overall, the customizability of these buttons is very good, and depending on personal use, I can see it being very useful.
Battery life: Battery life is fantastic, never had any problem with it yet. I haven't really kept track but with my heavy daily usage (probably 10+ hours with no intense gaming), it can usually go for more than a month. You can also use it while it's being charged.
Durability: I have unfortunately knocked it over the desk a couple times on hard vinyl floor and there seems to be no problem with it at all. Before purchasing this I saw some comments about how it stopped functioning after being dropped to the floor and I was really worried about it. However that is not my case at all. It is very durable in my opinion and does its job perfectly even after dropping it a few times.
Overall, extremely comfortable to use. It helped with my wrist pain tremendously and now I use it for hours without feeling any discomfort. The functionality is severely disadvantageous compared to Master 2s and 3s, and possibly other gaming mouses as well, but if you are here because of wrist pain, this is the right product.
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Reviewed in the United States on May 24, 2024