Mobile version:
➔ For TX, long press the yellow button for 6 seconds when the power is off to enter pairing mode (quickly flashing blue light);
➔ For RX, long press the yellow button for 3 seconds to enter pairing mode (RX shows quickly flashing blue light);
➔ TX and RX need to enter the pairing mode at the same time. Steady blue light indicates pairing is successful.
Camera version
➔ For TX, long press the yellow button for 6 seconds when the power is off to enter pairing mode (quickly flashing blue light);
➔ For RX, press and hold the M button on the lower left side for 3 seconds to enter pairing mode;
➔ TX and RX need to enter the pairing mode at the same time. Steady blue light indicates pairing is successful.
The camera version adjusts the output volume through the knob on the RX. Turn clockwise to turn the volume up and counterclockwise to turn the volume down. The 3 LEDs below show the current volume level.
The mobile version adjusts the output volume through the LarkSound APP. The iOS version of the APP supports 3-level adjustments while the Android version supports 6-level adjustments.