1.Built-in Bluetooth chip, Bluetooth 4.2 connection, with transmission distance and better stability. The power consumption is lower, the power is less than or equal to 2W, the endurance is increased by 2 , and the connection stability is increased by 1.2 . 2.9 level noise reduction, comfortable to the ear.Dual PTT intercom mode: PTT intercom, Bluetooth PTT intercom. screen display: display signal display, power display, Bluetooth link display. 3.The ear hook is not closed with the headset. You can remove and replace the left and right ears at will. You can switch ly according to your habits.Support computer, charger, charging bank and other charging methods. 4.1100mAh -capacity lithium battery, super-long standby for 3 , you need a good battery to accompany you in order to make lasting communication. 5.Other functions: 32 channels, sub-audio selection, power-saving function, scanning addition, bandwidth selection, Bluetooth switch selection, computer reading and writing frequency function, CTCSS/DCS, etc.Applicable to all walks of life: catering, hotel, security, beauty salon, architecture, etc. Material: ABS colour: silver Package Contents: 1 x Intercom 1 x Bluetooth headset 1 x Lanyard 2 x USB charging cable