BlueFox Bluetooth Headset Works with Most Bluetooth Enabled Devices Designed Using New Bluetooth V2.0 Technology Compact Ergonomic Design Fits Snugly Into Ear Adjustable Ear Hook That Can Be Worn On Either Ear Blue Tooth Version 2.0 EDR 5-6 Hrs. Talk Time 125 Hrs. Standby Time Auto Easy Pairing .7 oz