Stylish Wireless Stereo Bluetooth Headset for Apple iPhone 4/4S/4GS - White Bluetooth Ver 2.1 + EDR. Compatible with all bluetooth enabled Cell Phone/PDA/PC Stylish design and WATER RESISTANT for sports / outdoor use * Up to 9hrs talk time, 8hrs music time* Standby time: Up to 16 days* Weigh: 23g (light) High-fidelity stereo sound for music and crystal clear for talk