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1. Power: Press the power button for about 5 seconds,the blue light will on.2. Pairing: Press the power button for about 5-7seconds, when red and blue light flashing alternately into pairing mode.3. VOL +: Press the volume + button for 2 seconds, add up the volume a maximum sound, a warning sound.4. VOL-: Press Volume - button for 2 seconds, cut down the volume a minimum sound, a warning sound.5. Previous: Press VOL+6. Next: Press VOL-7. Telephone Answering: when to call, press the power button.8. Reject to answer: when to call, press the power button for 2 seconds.9. Redial last telephone number: double-click on the standby power button.10. Charging: red light when charging, blue light when fully charged.Specification:Bluetooth version: V4.1Operating distance: Up to 10m (free space)Bluetooth profiles: A2DP, AVRCP, HSP, HFPTalk/music playtime: Approximately 6 hoursStandby Time :180 hoursCharging time: Approximately 2 hoursCharging Voltage: 5V / 1AFunction: voice prompts, answer / end / reject, volume control, multi-point connection, listen to music song / next song, noise reductionPackage Include:1 x Bluetooth 4.1 sports headset1 x USB charging cable1 X User Manual