Broadcast Quality Sound

We wanted to create a transmitter that would be truly unique and different. Its compact form factor makes it perfect for hiding under outfits. With a run time of 10hrs @ 100mw and a recharge time of less than an hour, the BP-TX is ready for a full workday.

BP-TX Features:

  • Multiple RF Outputs (10mw, 25mw, 50mw, 100mw and AUTO)
  • Guard Rail Limiter
  • 75Hz and 150Hz Low Cut Filters
  • Boost Audio Frequencies 7KHz – 20Khz
  • Assign User ID’s to each transmitter
  • 1″ OLED display
  • Screen and button lock
  • 24bit/48Khz
  • Uses Standard Locking 3.5mm lavaliers

Replaceable Antenna

The BP-TX features a SMA antenna port so if an actor destroys your antenna, you just swap it out. No need to send your unit in for repair.

Compact Size

The BP-TX is about the same size as a deck of cards. This puts it inline with most industry transmitters. And because of this it is also compatible with many transmitter accessories on the market like URSA Straps.

Robust Menu

The menu of the BP-TX gives you control over amazing features like a 20-200Hz adjustable low-cut filter, high frequency boost, the ability to turn on an analogue limiter and more. You can also assign a name to the transmitter and control it’s RF output (10mw, 25mw, 50mw, 100mw, AUTO)

Form FactorPlug-on
RF Output PowerAuto / 10 / 25 / 50 / 100 mW (Switchable)
Audio I/O1 x 1/8″ / 3.5 mm TRS Female Balanced/Unbalanced Input (Lockable)
PadUp to -12dB
MutingMute Switch
Gain Range-12dB to +36 dB
Signal ProcessingHigh Pass Filter- Off, 20-200Hz
HF Boost: Off, +1dB – +10dB @ 7Khz
Antenna1 x 1/4 Wave External, Detachable, SMA
1 x 1/4 Dipole Internal
Power RequirementsBattery, Bus Power (USB-C)
Battery Type1 x Built-In Rechargeable
Internal Battery Capacity2200 mAh
Battery Charging Time75 Minutes
Approx. Battery Life~10 Hours @ 100 mW RF Output
+12 Hours @ 10 mW RF Output
Battery Cycle CountUp to 500 Full-Life Cycles
USB Connectivity1 x USB Type-C (Bus Power, Charging, Firmware)
Display & Indicators1 x OLED (Audio Level, Battery Status, Mute, Signal Strength)
2 x LED (Mute, Power)
1 x LED (Sync)
HousingAluminum with ABS accents
Dimensions2.5 x 3.7 x 1″ / 63 x 92.8 x 26 mm (without Antennas)
Weight5.2 oz / 148 g

Sounds like your screen lock has engaged. Press and hold the Up and Down buttons at the same time for 3 seconds to unlock your screen.

Add some High-Frequency Boost in the TX menu to increase the high frequency making it sound brighter and more clear.

Make sure when you are using transmitters that are paired to different receivers that you use the USB-C Master Slave Sync cable. Plug in the USB-C Master Slave Sync cable to both receivers to sync them up. This will help prevent your transmitters from hopping to the same frequency at the same time.

Make sure your antennae are screwed all the way on. Try to make sure the bend of the transmitter’s antenna is away from the human body – this alone will increase the efficiency of the transmitter by another 25%. Also make sure you are not standing within 5 meters of the WiFi router – a lot of WiFi routers have bad RF spray that affects all of the 2.4GHz channels. Keep your cell phone away from your BP-TX, it will affect your signal range. Lastly make sure you don’t use the same USER ID on more than one BP-TX. The USER ID is used to encrypt and decode your signals and having multiple units with the same USER ID will confuse your receiver’s ability to decode the signal.

Make sure you are using a USB drive that is formatted for FAT32. Also insert your drive after you’ve entered the update menu but before you upload the update file. Make sure you have placed the .bin files on the root of the USB drive.

Some brands of lavaliers do not recommend using their lavaliers with 100% digital systems like the Deity Connect or the Sennheiser AVX. This is due to their lavaliers’ lack of shielding in the cable. You can either reduce the RF Power on your TX to see if this helps reduce the interference noise or change to a lavalier that was designed for use with a digital wireless system.

Visit our firmware page and get the latest update.

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