i.Tech Clip Music 801 Bluetooth Stereo Headset - Black/Silver Bluetooth Specification: Version 2.0 + EDR Class 2 Operating Temperature: -10 to 65o C / 14 to 149o F Talk Time / Standby Time: Up to 5.5 Hrs / Up to 150 Hrs Dimensions: 1.75" (L) x 0.79" (W) x 0.94" (T) Weight: 0.53 ounces / 15 grams