Paket Berisi :
-  1 Buah headset
-  1 Buah donggel usb
-  1 Kabel jacksparrow
-  1 Kabel charge
-  1 Kardus

- Power Switch
This switch can charge the battery either on or off.  
The indicator light is red/blue side luminous LED, the blue light blinks slowly when the code matching fails, and the blue light is steady on when the code matching succeeds.  
The red light is the microphone mute status indicator. When the microphone is mute, the red light is steady on, and when the microphone is normal, the red light is off (when the battery is low, the red light will be used as the battery indicator and blink to indicate the low power status).

- The matching code requires that the transmitter is plugged into the computer, and the receiver is turned on. The receiver will automatically search for the matched transmitter before the shutdown according to the historical matching information.
If the code is not checked before, long press the receiver volume plus V+ and volume minus V- for about 2S to enter the code  
The blue light flashes quickly with a "pairing" (s);  
After the code matching is successful, the blue light of the receiver is steady on

- Mass production software TX will roll code to burn different UID, the current headset project needs two-way transmission, this mode does not support one drag more.

- the volume +  
When in play mode;  
--- Press the volume slowly and press the volume long to press the volume to increase the maximum volume. A beep tone is reported

- the volume -  
When in play mode;  
---- Press and hold the volume down slowly. Press and hold the volume down quickly to reduce the minimum volume
 
- Power on and code indicator light  
---- indicator light is red/blue, the blue light blinks slowly if the code is not matched successfully, and the blue light is steady on if the code is matched successfully.  
If there is no code matching with the transmitter after 3 minutes, the receiver will shut down automatically.  
If the battery is lower than 3.0V, the earphone will beep battery_low when the red light blinks.  
If the battery is lower than 2.9V and the red light is steady on, the earphone will sound "Poweroff" and automatically shut down

- MIC (microphone bar)  
This microphone is a microphone rod, 
-  Power on and code indicator light  
The red light is on when charging, and the red light goes out when charging
-  USB socket  
The headset cannot be turned on in charging state, and can be normally turned on again only by unplugging the charging cable.

Feature :
- 2.4g high-speed wireless connection, no-pair code connection, barrier-free transmission distance of about 10M, can penetrate ordinary walls,  
- Support the industry's smallest transceiver  
- Supports USB1.1 protocol  
- High quality stereo finish poor sound quality,  
- support WINDOWS98 or above, MAC and ANDROID operating system

- Product technical parameters :
Frequency range:2.402-2.480GHZ
Signal to noise ratio:1000HZ           
Channel sound insulation:2MHZ
Sending and receiving distance≥10M
transmitted power:10dbm
Acceptance sensitivity :-84DBM
Sampling frequency:48KHZ,16BIT
lithium battery:3.7V,1200MA
Transmitter power approx:5V/120mA; 
Receiver power approx.:3.7V / 85mA
The charging time:2.5 H
Working hours:   8H
The loudspeaker diameter:?40  
The speaker impedance:32Ω
The speaker power:20MW
Horn frequency response:20HZ~20KHZ
The mi diameter:?6.0
The mi sensitivity:-58DB+/-3DB
Frequency response:10~16K