Audio Multi-tool

Quick Look

The Ultimate Audio Multi-Tool

The BP-TRX is the ultimate audio multi-tool. It is unique because it can become a transmitter, a receiver, a timecode-enabled audio recorder, or just a standalone timecode box. The BP-TRX adapts to fill whatever role you need filled on your set.

  • Transmit and Record at the Same Time;24-Bit/48kHz
  • Features Timecode Input and Output for Jam-Sync
  • Supports up to a 128GB MicroSD Card*
  • Analog Limiter, Low Cut Filter, High-Frequency Boost
  • Locking 3.5mm Input
  • USB-C Port for Recharging / USB Sound Card
  • +12 to 25 Hour Life from Rechargeable Battery
  • Transmit to 4 Receivers, 328’ Range, up to 100mW

*Not compatible with Sandisk MicroSD/TF cards



Why would you want anything but this

Jason McCutchen - Wedding FIlm School

All BP-TRX features

A Tool For Everything

The BP-TRX is akin to a small pocket computer with analog audio I/O, digital I/O, wireless transmission I/O, and timecode I/O. In the TRX Mode menu, you are able to select one of seven different modes that connect these different I/O ports and turn it into the exact tool you need in the moment.

Record +120 Hrs Of Audio

You can record entire days of audio before you have to swap microSD cards.

Max Card Size – 128GB*
Card Type – microSD
Card Format – FAT32, exFAT
Max File Size – 2GB; automatically keeps recording and creates a new file
File Type – 24bit/48KHz Uncompressed PCM WAV File
*Not compatible with Sandisk MicroSD/TF cards

Guard Rail™️ Analog Limiter

The BP-TRX features an analog limiter to help prevent clipping and distortion. Record clean audio worry-free.

Stay In Sync

When used as a standalone TC box, the BP-TRX will run for over 25 hours. And with its 0.2ppm accuracy, the BP-TRX will only drift 1 frame every 24 hours.

More Versatile Together

Users can pair two BP-TRX units together to create a single-channel wireless microphone system. Remotely control your transmitter’s settings from the connected receiver. Using the record button on the BP-TRX in RX Mode will trigger the internal audio recorder on your actor’s bodypack transmitter.

These are for filmmakers who

are serious about audio


Transmission Type 2.4GHz
RF Output Power10mW / 25mW / 50mW / 100 mW
RangeUp to 100m
Gain Range-12dB to +36 dB
Signal ProcessingGuard Rail™ Analog Limiter
Low Cut Filter – Off, 20-200Hz
High Frequency Boost: Off, +1dB – +10dB @ 7KHz
Audio I/O1 x 3.5mm Locking Mic/ Stereo Line Input
1x 3.5mm Locking Audio Output
1x USB-C Digital Audio
Timecode TypeSMTPE
Timecode Accuracy0.2ppm
Timecode Frame Rates23.976ND, 24ND, 25ND, 29.97ND, 29.97D, 30ND, 30D
Battery TypeLithium-Ion
Internal Battery Capacity2800 mAh
Approx. Battery Life+12Hrs to 25Hrs (Mode Dependent)
Battery Charge Time130 Minutes
Antenna1/4λ Dipole External, Detachable, SMA
Display1" OLED
HousingAluminum with ABS accents