ZOYOL Bluetooth Headphones, Wireless Headphones, HD Stereo in Ear bluetooth Earbuds Sweatproof Sports Earphones Noise Cancelling Headsets with Mic for Gym Running Workout 6Hour for iPhone, Galaxy, etc Permits safe and convenient hands-free phone operation Works with cordless and cellular phones with a 2. 5mm jack Adjustable boom microphone for clear communication Provides comfortable and secure fit Behind-the-neck design keeps wires out of the way