Features True Wireless: Completely tangle - free stereo sound
wherever you go without annoying cables to tie you down Bluetooth 4.1: Full support for advanced AAC, SBC, and aptX
audio standards Ultra Light, Low Power Consumption: Barely there feel at 4g, including an omnidirectional microphone Single Touch Multi-function: With a single button you can power on / off, take a
call, play music, skip tracks, change volume or even access Siri easily by tapping, holding, or double - tapping on the button Microphone: Unlike most other similar sized earphones on the market today, we integrated a MEMS omnidirectional microphone with an input sensitivity of -42 dB (+ / - 2dB).