NKL True Wireless HEADPHONE With Charging Case Bluetooth  (Green, True Wireless)

small size, super light weight. comfortable fit for any ear. True high definition sound Equip with Bluetooth Noise Cancelling technology to enjoy clear fidelity phone To use, press & hold the button for 3 seconds of release after the LED flashes between Red & Blue, Open mobile phone Bluetooth & search Headphone, connect it, Pair the earphone with your mobile phone, it will be in standby status after pairing completed, Blue LED flashes 5 seconds each time, Twins Pairing Press and hold the function button of the other headphone for 1s, release after LED flash in Red, two earphones will automatically paired, LED flashes in Blue after connected.