Features: BT + stereo headset combo + MP3 player + FM radio. Wireless headphone connects to iPhone, Samsung Galaxy's, HTC's or any other device that has BT capability. Allow you to answer or reject phone calls anytime and anywhere. Supplied with a 3.5mm cable that you can use to connect the headphone to devices without BT. Support TF/Micro SD memory card. With FM function, can listen to the FM radio. Up to 10 hours playing time, talking time up to 11 hours, and standby time 250 hours. Powered by the lithium battery (can be charged via USB). Good quality and fashionable appearance; adjustable length hinges and very comfortable to wear. Headphone is foldable and easy to carry. A good choice for listening music, watching movie, chatting online etc.