SKU: 73255908921

#SmallRig Pro Mobile Cage for iPhone 11 Pro (17mm threaded lens version) 2775

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Description

#SmallRig Pro Mobile Cage for iPhone 11 Pro (17mm threaded lens version) 2775The SmallRig Pro Mobile Cage for iPhone 11 Pro (17mm Threaded Lens Version) Model 2775 is a premium, form fitting aluminum protective housing engineered to transform the iPhone 11 Pro into a professional mobile filmmaking and vlogging platform. Unlike standard plastic phone cases, the 2775 is an architectural metal exoskeleton. It protects the phone chassis from drops while acting as a rigid structural hub for attaching cinema glass, external

The SmallRig Pro Mobile Cage for iPhone 11 Pro (17mm Threaded Lens Version) - Model 2775 is a premium, form-fitting aluminum protective housing engineered to transform the iPhone 11 Pro into a professional mobile filmmaking and vlogging platform.

Unlike standard plastic phone cases, the 2775 is an architectural metal exoskeleton. It protects the phone chassis from drops while acting as a rigid structural hub for attaching cinema glass, external microphones, LED video lights, and multi-axis handles.

Key Engineering and Structural Features

  • Anodized Aluminum Construction with Shock-Absorbing Pads: The entire cage is CNC-machined from high-strength aluminum alloy, protecting the smartphone from high-impact damage. The interior cavity is lined with soft, custom-molded rubber and EVA padding to absorb shock and prevent the cage from scratching the phone's glass and steel exterior.

  • 17mm Threaded Optical Lens Plate: Built directly into the rear camera cutout of the cage is a mathematically aligned 17mm threaded lens mount baseline. This enables mobile cinematographers to screw premium anamorphic, wide-angle, or macro lenses (such as those from Ulanzi, Sandmarc, or Kase) directly over the iPhone’s native lenses with zero frame play or alignment drift.

  • Quick-In / Quick-Out Dual-Lock System: The cage uses a toolless, quick-acting pop-lock sliding door mechanism. Filmmakers can press the mechanical latch, slide the top door open, insert the phone, and click it shut in under two seconds.

  • Dual Cold Shoe & Cheese-Plate Mounting Array: The frame is a comprehensive mobile rigging layout. It includes two built-in cold shoe mounts (one on the top horizontal frame, one on the left vertical side) alongside multiple 1/4"-20 threaded holes. These points allow you to mount mini shotguns, wireless audio receivers, or LED panels without adding bulky accessory brackets.

  • Ergonomic Handheld Grip Expansion: The side and top 1/4"-20 hole layouts match standard handle dimensions. This allows operators to bolt on a top handle (such as SmallRig SKU 1984) or dual side handles (such as SmallRig SKU 2424) for rock-solid, multi-handed tracking shots and stable mobile panning.

Hardware Technical Specifications Matrix

Parameter SmallRig SKU 2775 System Specifications
Official Model SKU 2775 (Specialized Pro Mobile Series)
Smartphone Compatibility Apple iPhone 11 Pro exclusively (Does not fit 11 or 11 Pro Max)
Optical Interface Spec Dual-position 17mm Threaded Mount Base
Accessory Mounts Array 2 × Cold Shoe Mounts, Multiple 1/4"-20 Threaded Openings
Lanyard Architecture Dedicated eyelets on both bottom corners for wrist straps
Material Composition Premium CNC Anodized Aluminum Alloy & Protective EVA Blocks
Physical Dimensions 160.0 mm × 87.0 mm × 15.5 mm (6.30" × 3.43" × 0.61")
Net Operational Weight Ultra-lightweight 98 grams $\pm$ 5g (3.46 oz)

💡 Operational Mobile Production Tips for the 2775 Cage

The Lens Alignment and Weight Distribution Rule: Attaching high-quality 17mm threaded cinema lenses or heavy anamorphic glass over the camera module creates an off-center weight distribution, throwing the phone's balance toward the upper right. If you mount the cage straight onto a standard compact desktop tripod using a single center screw, the setup will feel top-heavy and tilt easily. To stabilize your frame, attach a SmallRig Lightweight Side Handle (such as SKU HSS2424) to the opposite vertical rail. This grip lets you brace the rig with your hand to smooth out walking vibrations and reduce wrist fatigue.

  • Protecting the iPhone Screen Assembly: While the thick aluminum walls of the 2775 cage shield the sides and back of your iPhone 11 Pro, the front screen remains completely exposed to protect the touch interface. Always pair the cage with a high-quality tempered glass screen protector. Ensure the screen protector is installed perfectly straight; if it extends over the curved glass edges of the phone, the tight rubber padding inside the cage can squeeze the edge, causing the screen protector to bubble or lift away from the display.

  • Bypassing Audio Cable Stress Points: When rigging an external microphone (like a Rode VideoMicro) to the top cold shoe of the cage, you must use an Apple Lightning-to-3.5mm headphone adapter to pipe the audio into the phone. Because mobile setups are subject to sudden movements, tether the adapter cable to the side of the 2775 cage using a small hook-and-loop cable strap. Securing the line stops the adapter from bouncing around, preventing popping noises in your audio track and keeping the Lightning port from wearing out over time.

Shipping Notes
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Exchange/Return Notes
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SKU: 73255908921

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4.8 ★★★★★
Based on 29 reviews
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Crimm
Port Orchard, US
★★★★★ 3
Decent for the price. Instructions suck but most people should be able to figure it out. More below.
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
SUMMARY: 3 stars from me because it's firmly average. It's fine for the price. Assembly and materials are alright but I can see some caveats depending on your circumstances. Assembly instructions do a subpar job of pointing out some details. ASSEMBLY INSTRUCTIONS: Maybe it's because I'm autistic and/or building model kits and assembling stuff is my jam, but I honestly thought people were exaggerating when they were complaining about the instructions and I'd be able to flex my ~superior assembly skills.~ I was wrong! These instructions genuinely suck, and whoever is responsible for making them should be ashamed. The instructions do a poor job of calling out some details regarding orientation of parts, and some of the images do not actually match the physical parts. For example, it does not really outline the assembly of the end panels clearly, and I can see someone accidentally using the wrong poles. I've drawn over a photo to show what you should do to try and make it clearer. Additionally, the manual shows a flathead screw for bolting the feet into position, but the actual screw is not a flathead. It also does not point out the counterbore, so if you aren't paying attention you may put the foot pads onto the wrong side of the foot. It's also missing the fact that you need to use another one of the plastic pieces when you finish assembling a panel. ACTUAL ASSEMBLY & MATERIALS: To their credit, all of my bags were clearly labeled. The assembly process wasn't difficult. It's mostly just tedious and requires a fair amount of space. I was able to assemble it by myself without any real difficulty. However, the way it's assembled means two things. One, the fabric parts aren't removable without disassembly. So if you want to use this in an environment where they would require cleaning, I would seriously recommend looking for another option. Or, you could buy this just to use the frame pieces and then somehow buy or make your own fabric pieces designed to be removable with velcro or something. Two, because of the materials I really don't have a lot of faith in this thing surviving disassembly and reassembly. Like a lot of sorta-cheap-but-convenient furniture, it uses those spring-button connections and plastic inserts with self-tapping screws. Those things are not really meant to be disassembled and rethreaded. It also relies a lot on the tension of the poles and the fabric to keep everything rigid and squared, which I think puts a lot of pressure on the aforementioned buttons, plastic inserts, and the hollow metal rods. So I feel like that will also cause issues with disassembly and reassembly. Basically once this thing is assembled, it's not really meant to be disassembled. The best you can do is spot-clean the fabric if you need to. Speaking of the fabric, I didn't see any labels on them or anything in the manual that says what they are, but they feel like some kind of polyester. They generate static electricity pretty easily, and pet hair and debris sticks easily. So that's another downside of them not being easily removable. For the most part it does seem pretty stable. The poles seem to be pretty uniform in length so they're all making contact with my floor. Obviously this isn't structural so it shouldn't be supporting anything, but the two main feet seem to be doing fine with keeping this thing upright. CLOSING THOUGHTS: Really, it's fine for what it is, but it could be better in a lot of little ways and the substandard quality of the instructions just seems unprofessional to me, which is why I'm being so harsh with my rating. Depending on your needs and environment you may want to consider a different option. Preferably one that is made to be disassembled with better materials, and/or one with fabric pieces made to be removed easily.
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Reviewed in the United States on May 28, 2023
B
Verified Purchase
Barb
Port Orchard, US
★★★★★ 1
Not as it seems
Color: Black, Size: 6 Panel
these are awful... Each individual panel is fine, but when you put it together it can barely stand up, and the clips that hold it together keep popping off. Steer clear of this item.
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Reviewed in the United States on April 7, 2026
T
Verified Purchase
Timothy Beckner
San Leandro, US
★★★★★ 5
As described
Color: White, Size: 6 Panel
Works great in my clinic
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Reviewed in the United States on May 17, 2026
M
Verified Purchase
Michael S
Dallas, US
★★★★★ 5
Great Product that does exactly what it says it will.
Color: Beige, Size: 34"- 3 Panel
I really enjoy this product and it does exactly what it describes. I use it on my balcony. It is effective, but still very lightweight. It is easy to assemble as well. The price point is excellent. Also, I had an interaction with the company about an issue and they were incredibly responsive and helpful, fixing the issue immediately. Highly recommend.
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Reviewed in the United States on April 3, 2026
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Verified Purchase
Lula-A1A
San Leandro, US
★★★★★ 5
Great WFH screen for video calls
Color: Black, Size: 22"- 4 Panel
I share a workspace with my hubs since we both work from home. I have the attention span of a 🐿️ and need this so I can focus on my work and not get distracted by him, since he is very amusing to watch. This screen is very lightweight and the panels can move and create a little cubicle around your workspace. I personally loved cubicles & despise open space seating, even at home. The ADHDer in my loves being able to block things away from my field of vision. These panels also hide any mess behind you, especially if you forget to blur the background on Teams or Zoom calls or if you don’t have the option to change your backgrounds. This was fairly easy to put together and very easy to move and adjust. The screen is a much better option than a sheet as I’ve seen others use on calls.🤦🏻‍♀️😂 I’m not sure how it will stand up around rambunctious pets or kids, but fairly certain it takes quite a push to knock it over. We have four cats & I’m pretty sure someone would try to climb this, which is why they’re not allowed in our workspace.
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Reviewed in the United States on April 10, 2025

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