Speech transmitter：
Power on: in the shutdown mode, long press "switch key" for 2 seconds, the red light goes out, and when the blue light comes on, let go
Power off: in power-on mode, press "on/off" button for 2 seconds， until all indicator lights go off
Pairing: in the shutdown mode, long press "switch key" for 6 seconds until the red and blue lights flash alternately, and the transmitter enters the pairing mode. In the matching mode, the transmitter and receiver can be paired at close range (within 2 meters). Press any key to exit the pairing mode and then speak.
Duplicate transmitter: the main transmitter enters pairing mode. The transmitter that needs to be copied hold down "mute" button and then press "on/off" button for 6 seconds. blue light and power lights on for 2 seconds at the same time, after the successful copy of the blue light long bright, sub machine short press the switch key, shutdown can be.
（Note: after successful replication, there is no distinction between the main transmitter and the secondary transmitter, depending on which one connects to the receiver first.）
Mute: press "mute" to start and turn off the mute function. When mute, the blue light is on for 2 seconds and off for 0.5 seconds; Non-mute: the blue light is on for 0.5 seconds and off for 2 seconds.
Turn off receiver: in connection mode of transmitter, press "turn off receiver button" for 5 seconds until red and blue lights flash simultaneously, indicating it is in turn off receiver mode. Press any key to exit the state.
Channel change: in power-on mode, long press "mute" for 3 seconds, and the red light shows for 1 second, indicating that the channel has been changed to the next channel, automatic receiver following.
Delete transmitter: in shutdown mode, hold down "mute" and "turn off receiver" and then hold down the power-on button for 6 seconds, flash red and blue alternately, and the power lamp is on for 2 seconds, which completes the function of deleting transmitter (only used to delete the secondary machine, the host machine cannot be deleted).
The
LED display：
Power on mode: blue light is on for 0.5 seconds and off for 2 seconds
Pairing mode: red and blue lights flashing alternately
Turn off receiver mode: red and blue lights flash together
Mute mode: blue light is on for 2 seconds and off for 0.5 seconds
Low electric prompt: red light flashing slowly
Channel change: red light for 1 second
Duplicate transmitter: blue light on for 2 seconds/power on for 2 seconds
Delete transmitter: red and blue alternating flicker corresponding pairing mode
Power consumption: 54 mA
Speech receiver：
Power on: in the shutdown mode, long press "on/off" for 1.5 seconds, the red light goes out, andwhen the blue light comes on, let go.
Power off: in power-on mode, press "on/off" button for 1.5 seconds until all indicator lights go off.
Pairing: in boot mode, in no connection state, close to the transmitter in pairing mode, the blue light changes from quick flashing to long bright, indicating that the pairing has been successful.
Power saving mode: enter power saving mode 30 seconds after disconnection.
The LED display：
Connection mode: blue light is on for 0.5 seconds and off for 2 seconds
Connectionless mode: blue light is on for 0.5 seconds and off for 1 second
Power saving mode: the blue light is on for 0.5 seconds and off for 5 seconds
Low electric prompt: red light flashing slowly
Power
consumption：
Connection mode: 16mA
Power saving mode: 1mA