Sound ID 200 Wireless Bluetooth Headset - Cobalt Blue RealComfort EarLoops are scientifically designed to provide a secure and comfortable fit and better channel sound into the ear for enhanced listening. NoiseNavigation delivers Increased speech intelligibility as dual microphones automatically isolate speech while minimizing background noise. Automatic Volume Control eliminates the need for constant volume adjustment in variable noise situations such as driving. 6 hour talk time, 9 day standby Lightweight at 8 grams (.28 oz)