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Description
RTS BP-4000-A4M Single-Channel Portable Beltpack Headset Station - 4-Pin XLR, MaleWith the Telex BP4000A4M Single Channel Portable Beltpack Headset Station, you can stay in communication on an RTS, Audiocom, or Clear Com intercom system. This wired beltpack station features auto wiring scheme detection, which automatically recognizes the system you plug it into, and configures itself to be used with it. The beltpack also features intelligent power management, so you can daisy chain up to 40 beltpacks by using a single (optional) PS
With the Telex BP4000A4M Single-Channel Portable Beltpack Headset Station, you can stay in communication on an RTS, Audiocom, or Clear-Com intercom system. This wired beltpack station features auto-wiring scheme detection, which automatically recognizes the system you plug it into, and configures itself to be used with it.
The beltpack also features intelligent power management, so you can daisy-chain up to 40 beltpacks by using a single (optional) PS-20 power supply. A current pump circuit constantly keeps tabs on overall cable length, versus the actual current consumption, so each beltpack receives the voltage it needs.
The BP-4000 has additional features to help make it easy to integrate it into an intercom system, including guided setup and various communication controls. Connections are made by means of a male, 4-pin XLR connection.
Enhanced Talk Button Control
You have the option to set your talk settings to either "always on", "always off", or "switching". A built-in blinking lamp gives you a visual indicator to incoming calls.
Remote Microphone Kill Switch
Any user on the intercom can instantly mute the mics on all attached BP4000A4M beltpacks by sending an inaudible "kill signal". This feature can be overridden if needed, but is useful to have in situations where an open mic somewhere in the partyline needs to be immediately silenced.
Voice Guided Setup
Rather than configure internal jumpers and switches, short voice prompts help you navigate the menu options to configure the BP4000A4M. If needed, you also have the ability to reset the beltpack to factory default settings.
Headset Compatibility
The BP4000A4M has a 4-pin male XLR port that is compatible with a (separately available) 4-pin female XLR headset. Both dynamic and electret headset microphones are supported.
Telex RTS BP4000 Specs
| Connection | 1 x XLR (4-Pin, Male) |
| Call Signaling | Balanced Intercom Channel: 20 kHz, Send and Receive Unbalanced Intercom Channel: 20 kHz/DC, Send and Receive |
| Mic Off Frequency | Balanced Intercom Channel: 24 kHz, Send and Receive |
| Output Level | Balanced Intercom Channel: 0.0 dBu, Nominal Unbalanced Intercom Channel: 0.0 dBu, Nominal |
| Load Impedance | Balanced: 300 Ohms Unbalanced: 200 Ohms |
| Noise | Balanced: < -60 dBu Unbalanced: < -60 dBu |
| Total Harmonic Distortion | Balanced: < 1.0% Unbalanced: < 1.0% |
| Bridging Impedance | Balanced: > 10 kOhms Unbalanced: > 10 kOhms |
| Headphone Amplifier | Maximum Output: > 140 mW into 150-Ohm Load Frequency Response: 200 Hz to 8 kHz (±2 dB) Audible Alert: 1 kHz Total Harmonic Distortion: < 1.0% Sidetone: > 20 dB Dynamic Range |
| Maximum Operating Current | Balanced: 52 mA Unbalanced: 45 mA |
| Power | 18 to 33 VDC |
| Operating Temperature | 32 to 131° F / 0 to 55° C) |
| Operating Humidity | 5 to 95%, non-condensing |
| Storage Temperature | -4 to 158° F / -20 to 70° C |
| Storage Humidity | 15 to 90%, Non-Condensing |
| Dimensions | 3.7 x 1.3 x 4.7" / 95.2 x 34.2 x 119.2 mm 3.7 x 1.6 x 4.8" / 95.2 x 39.4 x 121.6 mm (with Belt Clip and Top Panel Button) |
Packaging Info
| Package Weight | 1.25 lb |
| Box Dimensions (LxWxH) | 8.6 x 6.5 x 2.15" |
Shipping Notes
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Exchange/Return Notes
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4.7 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 4
keyboard and case is phenomenal, trackpad is borderline unfunctional
Color: Black
I bought this case, because of the keyboard and trackpad, i wanted to use my ipad more like a laptop. the keyboard is phenomenal and certaintly better than other cheap ipad keyboards i have tried, I can actually use this one without having to repeatedly slam or hard press certain keys and can actually have a flow of typing. additionally, everything else regarding the case itself is amazing. it isnt cumbersome or bulky and it is very easy to swap between ipad and laptop mode on the fly. the trackpad however is genuinely unusable. the sensitivity on the trackpad is horrid and I cannot figure out how to change it, and additionally, clicking using the trackpad is outright impossible. you try to left click, it registers as a right click, or you try to click and it instead snaps your cursor to the bottom of the screen instead. it is also impossible to use any gesture functions with the trackpad, even something as simple as scrolling up and down or left to right is impossible. it is outright impossible to have any kind of workflow using the trackpad. it is unfortunately just a lot easier to use the keyboard and touch screen! its a shame that the keyboard and case itself is very nice too, so I will now have to spend more money on a separate mouse, which is additionally ANOTHER item i will have to carry around, just to make what I already bought work the way I expected.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Great quality at a great price range!
Color: Navy Blue
Works very well for the day to day. Great quality at a great price range. Would definitely buy again if needed.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Solid case.
Color: Sky-Blue
Love this case. Fits great and the color is great! The keyboard is nice and it even has a little spot for a stylist.
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Reviewed in the United States on June 3, 2026
★★★★★ 4
Cheap and good
Color: Black, Color: Black
I chose the color black and it gives a really nice look, especially with the multicolor led lights around the keys. It is very easy to clean and you can shut off the keyboard to prevent any mess with the iPad. The magnet is very nice and keeps the keyboard in place. The keyboard doesn’t easily slip or anything so it holds the iPad very well. Only bad thing is that over time the iPad begins to scrape off the pain and it leaves your keyboard with some white spots all over :/ but if looks isn’t something that you care about, this is the keyboard for you. Don’t use it for gaming because there is a delay in functionality when you press a key and then try to use the pad. Also, you have to press the keys a bit harder than the usual keyboard. But for the price? This is a great item! Definitely worth my money
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Great quality at a remarkable price
Color: Navy Blue
I got an iPad and was looking for a cover to protect it. I came across this case that has a Bluetooth keyboard. It seems to be working great. It was less than $30 and had 4.5 stars with over 4k reviews.
The keyboard is magnetic and detachable, so I’ve got lots of configuration options. The keyboard pairs easily and allows you to use the iPad like a laptop. The point of an iPad a lot in one shot is kind of the touchscreen, but when I’m typing a lot of text as once (like now), it’s really nice to have a physical keyboard and touchpad. The keys are comfortably spaced and I’m comfortable typing on it. There is no additional setup for the keyboard besides pairing it to the iPad. At that point, all the cursor and keyboard features are immediately available.
The case is well built and has nice features like a slot to hold a stylus and multiple grooves to set your viewing angle. It’s configured to be used in landscape mode, but if for some reason you wanted to use it in portrait mode, you can pop the keyboard off to lay it flat. Especially for the price, this is an exceptionally nice iPad cover.
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Reviewed in the United States on May 8, 2026