Boya BY-W4 - BY-W4 RX Wireless Receiver; Status Indicator; Power Button and Pairing; Connectivity and Charging

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BY-W4 RX: Wireless Receiver
1. Status indicator
 Unpaired: Blinking blue (green) slowly
 Pairing: Blinking blue (green) fast
 Paired successfully: Static blue (green)
 Low battery: Blinking red fast
 Charging: Static red
 Fully charged: Red light off
 Note: When blue light is on, it means it follows the one RX to four TX pattern
(default setting). When green light is on, it means it follows the one RX to two
TX pattern.
 Note: Please charge the receiver when RX indicates low battery status, or it will
automatically shut off within 10 minutes. The receiver will automatically return
to the last pattern when next turned on.
2. Power button
 Press and hold for 2.5 seconds to power on or off.
 Press once to mute or unmute the microphone.
 Press twice to enter or exit the pairing state.
 Press and hold for 10 seconds when turned off to toggle pattern changes.
 Note: If the pairing is not completed within two minutes, the transmitter will
automatically exit the pairing state.
3. Belt clip
4. 3.5mm TRRS output
 For audio output to a camera, mixer, smartphone, tablet, computer, etc. Or plug
in a 3.5mm jack connected to headphones to monitor the recording.
5. USB-C charging port (DC 5V)
 For charging the transmitter using the included USB-C cable.