i.Tech Clip D-Radio Bluetooth Stereo Headset - Orange/Black Bluetooth Specification: Version 2.0 + EDR Class 2 Operating Temperature: -10 to 65o C / 14 to 149o F Talk Time / Standby Time: Up to 7.0 Hrs / Up to 150 Hrs Dimensions: 1.85" (L) x 1.0" (W) x 0.75" (T) Weight: 0.76 ounces / 21.5 grams