How to operate? Press and hold the power button for two seconds until the blue light and at the same time speak out 'power on',which indicates power is on. For first time matching, hold the power button until the indicator light flashes, indicating pairing mode. Turn on Bluetooth on mobile phones and search for the product named after "E2". Click the pair potion. After matching for the first time, the headset will automatically connect after pressing power button within 10 seconds. Click "+""-" to increase or decrease volume. Hold "+" to fast forward to the next song. Press the volume key "-" to go back to the previous song; Press the multifunction key to pick up or hang up incoming calls. Click multifunction key to play or pause when playing music; Specifications Speaker Type:Air conduction technology speaker, 0.5W double speaker Mic:Silicon wheat sensitivity -45+/-3db Play time:up to 6 hours The standby time:up to 10 days Fully charging time:1.8 hours Effective range:10m Bluetooth version:V4.2 Main chip:Bluetooth master IC AB1522S QFN5*5 Frequent work break:ISM Band(2.402-2.480GHZ) Transmit power：Class2 (-6dbm-4dbm) BT protocol:A2DPV1.3 AVRCPV1.5 HFPV1.6 HSPV1.2 Receiving sensitivity:88dBm Frequency range:20-20K Hz Impedance:32Ω Battery:110mA Weight:3g
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