ABS and Silicone. V3.0+EDR wireless technology. Supports multi-point connection. Works with most Bluetooth enabled devices including iPhone. Built-in microphone supports hands free function and acts as a wireless headset. Built-in rechargeable 70 mAh Lithium-ion battery. Micro USB charging cable included. Volume up/down, playback/previous, power on/off buttons. Portable, sweat proof and great for your run, walk, bike or at the gym. Standby time: 3 days. Playing time: up to 6 hours. Charge time: approximately 2 hours. FCC certified. Includes extra set of earbud covers, ear hooks and a strap. Lightweight and comfortable. Instructions included. Individually retail packaged. iPhone is A Registered Trademark Of Apple Inc.