Small Good Design Lightweight Round Earbuds Stereo Sound On-ear Controls Headphones Versatile with Behind-the-ear for Car Driving,jogger, Running,exercising (Black) DSP noise canceling technology adapted to a variety of rugged circumstances and highly cost-effective Support connect two Bluetooth devices at a time.In-built Microphones ,you can talk or chat on the mobile phones or on the internet such as facebook skype Hit the pairing button and instantly connect to a wide range of Bluetooth devices like iPhone, Android devices, tablets, and MP3 players Gently attach them behind the ears and it will sit there without shifting or adding undue pressure to the sides of your head Easily charge via USB cable,up to 5 hours of Talk/Playing Time and 80hours Standby Time