LARK M2 Support

Mobile version: Tap the yellow button on the side of the TX, or tap the yellow button at the bottom of the RX.
Camera version: Tap the yellow button on the side of the TX.

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.

Mobile version:
The mobile version can be upgraded via the LarkSound APP.
1. If the firmware is the latest, it will show [!] icon, you can click to check the firmware info
2. If it needs update, it will show [↑] icon, you can click to do the upgrade.
Note:
● The app cannot run in the background during the upgrade which may cause the upgrade interrupted.
● The transmitter cannot be turned off and must be connected to a stable power source during the upgrade.

Camera version:
The camera version needs to upgrade via the PC. And TX, RX need to be connected before upgrading.
● Connect the RX to your computer using the provided USB cable
● Open the software on your computer, it will automatically identify the microphone driver. Then click “upgrade” to do the upgrade.
● When upgrading, the LED on TX and TX will display a steady pink light. Wait for the progress bar on the software to complete. After finished, the LED on TX and RX will return to the previous color, indicating the upgrade 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.