Transmitter
1. POWER / MUTE switch (MUTE indicator)
2. Channel / Volume switch
3. LCD screen
4. Mesh head (hidden microphone)
5. External mic. Input
6. Hidden charging indicator
7. Aux input
8. Neck Strap hole
9. DC charging input
10. Strap hole
11. Neck strap
12. Buckle clip
13. Charging terminal
1. Press and hold for 0.5 second and the power is on. LCD backlit lights up.
2. When power is on, the button lights blue.
3. Power is on in two seconds and receiving audio signal.
1. Press and hold for two seconds to turn the device off.
2. OFF display on screen and all indicators turned off
1. Press and hold SET button for two seconds; enter into the channel select mode.
2. When channel numbers flashes, press 
or 
to select preferred channel. To confirmed, press SET button.
1. Press Mute button for two seconds; enter into the Mute / Talk switch mode.
2. Mute mode: LED lights red. Talk mode: LED lights blue.
Press SET button to display the current used frequency.
1. On OFF mode, press SET and POWER button to enter into the selection mode.
2. LCD screen will display maximum available channels; 640-664 MHz, 794-806 MHz and 863-865 MHz. Press or to select preferred channel.
3. Press SET button to confirm and select, or it will confirm in 5 seconds without any keys pressed.
4. LCD screen will display Hi / Lo, press or to select preferred output power.
5. Press SET button to confirm and select or to wait for 5 seconds without any keys pressed.
LCD screen will display current used volume level when press or (VOL. 1 ～ 3).
1. LED lights red when charging.
2. LED lights green when battery is fully charged.
3. When device is slot into a charger stand, will off the power.
4. Battery error: LED status lights red and flashes when charging, LCD battery symbol lights flashes, and it caused by:
(1)The battery charge temperature is exceeded 60°C.
(2)The duration of charging time for charger stand is exceeded seven hours.
(3)The battery is defected.
1. When power is on, it will synchronize frequency or switch off without receiving audio signal when exceeded upto ten minutes. When synchronization, MUTE indicator lights blue / flashes and LCD backlit lights up.
2. Press MUTE button when channel is displayed on screen, enter into the synchronization mode or off without receiving audio signal exceeded upto twenty seconds.
3. When succeed, it will switch to MUTE mode and LED lights red.
4. When processing frequency synchronization, the green charging indicator will be blinking while use a 20 slot charger or a 30 slot
charger. LCD screen will then display the current charging status.
5. The device can repeat synchronization by a charger.
To reset mode, press / at the same time and switch the power on.