Specification: Bluetooth IC: CSR8635 Speaker Type: Bone conduction technology speaker, 1W dual speaker Wireless range: 33ft (10m) Battery: 260mAh Polymer battery Mic: Anti-interference microphones, -40DB Continuous play: 8 hours Standby time: 10 days Charge time: 2 hours Bluetooth Version: V4.1 Weight: 60g Bluetooth Class(1/II): II Bluetooth Profile: a2dp/HFP, HSP, AVRCP, GAVDP, AVDTP Receiving Sensitivity: 88dBm Impedance: 8Ω Frequency range: 20-20KHz FM: No System language: English - Prompt tone is English Indicator light Red light flashing rapidly: lack of power Red light on: charging Blue light on: full charged Blue and red lights flashing: matching Blue light double flash slowly: fail to match, maybe the device is power off, or the distance of both is over 10m (30feets) Blue light flash slowly: Matched/dialing/playing audio. Blue light flashing rapidly: call coming Matching Method: 1.Put Bluetooth headphone switch at "ON" 2. Search Bluetooth device on your phone or other digital products, then choose it. If it is 1st time to match, it will automatically enter the match mode once the BT headphone turning on. And the LED lights will alternate flash between blue and red. If it was connected with last device, it will automatically match in 10s. And the blue light is on. If it matches other device or re-match, press "play" button for 3s, the Bluetooth headphone will enter manually matching mode. blue and red light flash alternatively. Package Contents: Bluetooth headset x1 Adjustable headband x1 USB cable x1
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