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Tips: 1. In Stereo Mode, when you use it as a pair, both earphones can control the media (such as Play/Pause, recall and so on) from its own button. Please be informed that you can only hear the voice from one earphone when you are in a call in Stereo Mode. 2.When to pair, please pair the 2 earphones first then to your Bluetooth devices Pairing Direction (Both earphones used at the same time) What’s in box? 1*pair Bluetooth Earphone 1*User Manual 1*USB Charging Cable For Bluetooth Earphone Specifications:Item Name: Bluetooth wireless earbudsBluetooth Version: V4.2 + EDR, ultra-low power consumptionFrequency: 2.4GHzMicrophones Sensitivity: 42DbBluetooth Range: About 33 feet (10 M)Charging Power: DC5VStandby Time: Up to 100 hoursMusic / Talking Time: 2 hoursTwins Pairing: 1. Long press/Double press the power button of the pair of earphones at the same time until the led flash in blue and red alternately. 2. Double press one of them will have a voice prompt that it is ready to pair. 3. Please turn on the “Bluetooth” on your cellphone and choose “tws-i7” on your list. 4. The led flash will be slowly in blue when connected Single Pairing: 1. Long press the power button of the earphone until the led flash in blue and red alternately, then it is ready to pair. 2. Please turn on the “Bluetooth” on your cellphone and choose “tws-i7” on your list, there would be reminding voice from the earphone saying “pairing success”.