Asidun Bluetooth Headphones V4.1 Wireless Sport Stereo In-Ear Noise Cancelling Sweatproof Headset with APT-X/Mic for iPhone 6s Plus Samsung Galaxy S6 S5 and Android Phones (AD-022-PK) Comfort fit for workout - your ultimate choice for wireless music and call when training Sweat proof - designed to withstand the most intensive workout conditions APT-X technology - delivers CD-quality sound wirelessly via Bluetooth Dual microphone - dual high performance mics deliver superb noise cancellation for crystal clear calls NFC for quick connection - quick and easy pairing and connection through built-in NFC