The BY-V4 series come with various configurations for you to choose from depending on your device interface. This manual is for all BY-V4 series packages. The BY-V4 package features a 3. 5mm TRS analog audio output for cameras, mixers, etc. The BY- V4U package features a USB-C digital audio output for USB-C smartphones, tablets, computers, and other mobile devices.
Page 3
In the BY-V4U package and the BY-V4D package, you can enable your mobile device’ s speaker without unplugging the receiver. Furthermore, the BY-V4 series operate on the 2.4 GHz spectrum and automatically hop to free channels to avoid static noise and audio dropouts.
Page 4
Product Structure Wireless Transmitter (BY-V4-TX) ❶ Built-in Microphone ❷ Indicator Status Indicator Unpaired Blinking blue and red alternately Pairing Blinking blue rapidly Paired successfully Static blue Microphone Muted Blinking blue slowly Noise cancellation enabled Static green Low battery Blinking red...
Page 5
Note: •If charging the unit when it is ON, the indicator will display the current working status instead of charging status. •Please charge the transmitter when the indicator indicates low battery status, or itwill automatically shut off within 10 minutes. •The noise cancellation feature cannot be enabled or disabled when the microphone is muted.
Page 6
USB-C Receiver (BY-V4-RXU) ❶ USB-C Connector It can be connected to a smartphone, tablet, computer, or other mobile device featuring a USB-C port. ❷ USB-C Charging Port When the receiver is plugged into an external device, the external device can be powered via this charging port.
Page 7
Lightning Receiver (BY-V4-RXD) ❶ Lightning Connector It can be connected to a smartphone, tablet, computer, or other mobile device featuring a Lightning port. ❷ USB-C Charging Port When the receiver is plugged into an external device, the external device can be powered via this charging port.
Page 8
3.5 mm TRS Receiver (BY-V4-RX35) ❶ 3.5 mm TRS Connector It can be connected to a camera, voice recorder, or other mobile device featuring a 3.5 mm TRS port. ❷ USB-C Charging Port ❸ Power Button • Press and hold for 2 seconds to power on or off.
How to Use For the BY-V4U or BY-V4D package 1. Connect the USB-C receiver to a smartphone, tablet, or computer that features a USB-C port, or connect the Lightning receiver to a device with a Lightning port. USB-C iOS Lightning 2.
Page 11
3. Pairing The transmitter(s) and receiver are paired by default. If they are disconnected, please follow the below steps: ① To make the transmitter(s) enter the pairing state, press and hold its power button for 5 seconds in shutdown mode until its status indicator blinks blue rapidly.
Page 12
For the BY-V4 package 1. Attach the 3.5mm TRS receiver to a camera or voice recorder, etc. 3.5 mm TRS 2. Press and hold the power buttons for 2 seconds to turn on the transmitter(s) and receiver.
Page 13
3. Pairing The transmitter(s) and receiver are paired by default. If they are disconnected, please follow the below steps: ① To make the transmitter(s) and receiver enter the pairing state, press and hold their power buttons for 5 seconds in shutdown mode until their status indicators blink blue rapidly.
Troubleshooting If you encounter problems when using the unit, please refer to the following checklist before contacting technical support. If the problem cannot be solved, please contact the dealer's after- sales service department. No sound ① Make sure the transmitter and receiver are paired, and the receiver light glows static blue.
Page 15
③ If the touch points are not firmly connected due to a lack of magnetic force, please contact BOYA after-sales support. The indicator doesn't display charge status Only if the transmitter and receiver are turned off, do their...
Specifications BY-V4-TX Transmitter Transmission Type 2.4 GHz Modulation GFSK Polar Pattern Omnidirectional Antenna Ceramic antenna Operating Range 200 m (without obstacles) Distortion ≤0.1% Frequency Response 20 Hz-20 kHz Sensitivity -42 dB RF Output Power ≤10 dBm Sampling Rate 48 kHz...
Page 17
BY-V4-RXU / RXD Receiver Transmission Type 2.4 GHz Modulation GFSK Polar Pattern Omnidirectional Antenna Ceramic antenna Operating Range 200 m (without obstacles) Signal-to-Noise Ratio 85 dB RF Output Power ≤ 10 dBm Distortion ≤ 0.1% Frequency Response 20 Hz - 20 kHz...
Page 18
BY-V4-R35 Receiver Transmission Type 2.4 GHz Modulation GFSK Polar Pattern Omnidirectional Antenna Ceramic antenna Operating Range 200 m (without obstacles) Signal-to-Noise Ratio 85 dB RF Output Power ≤ 10 dBm Distortion ≤ 0.1% Frequency Response 20 Hz - 20 kHz...
Page 19
BY-V4-CC Charging Case Battery Type Built-in Li-ion battery Battery Capacity 3.7 V / 1500 mAh Charging Time Approx. 2 hours Power Supply USB-C (DC 5 V / 2 A) 1 time (4*TX+1*RX35) Charge Cycle Times 2 times (4*TX) Weight Approx. 160 g Dimensions 143.6 x 35.5 ×...
Page 20
USB-A to USB-C Data Cable × 1 Pairing Pin × 1 Sticker Sheet× 1 BY-V4 BY-V4-TX Transmitter × 4 BY-V4-RX35 3.5 mm TRS Receiver × 1 Charging Case × 1 USB-A to USB-C Data Cable × 1 Sticker Sheet× 1...
Need help?
Do you have a question about the BY-V4 and is the answer not in the manual?
Questions and answers