Slim and Lightweight Design, Wireless Music plus Call Functionality, Stream Music to Your Home/Vehicle Audio System, Built-in Rechargeable Li-Polymer Battery, Turn Your Favorite Corded Headphones into Wireless * Includes Titanium Driver Noise-cancelling Headphones, Bluetooth Dongle Capabilities * Specifications: Bluetooth: V2.1+EDR, Transmission Power: Class 2, Bluetooth Profiles: A2DP, AVRCP, Frequency Range: 2.4GHz~2.480GHz, Transmission Distance: 10 meters, Battery: Li=Poly 3.7V 120mAh, Headphone Jack: 3.5mm * Compatible with: Apple iPad, Apple iPad 2, Apple The New iPad, Apple iPhone, Apple iPhone 3G, Apple iPhone 3Gs, Apple iPhone 4, Apple iPhone 4CDMA, Apple iPhone 4S * Also Compatible with Most Cell phones: BlackBerry, UP, HTC, Motorola, Samsung, Sharp, Sanyo, Sony Ericsson