Specification and Components CSR Solution. Latest V2.0 version transmission distance: Over 10m, neutral packing. Without Charger, With USB charging cable, Blister Card(back with menu) Features: 1. Simply turn the headset on, place it on your ear and a Bluetooth link is automatically established 2. The multifunction button allows you to place, receive or end calls, all with the push of a button 3. With Bluetooth wireless technology, devices work together even up to 10 meters (30 feet) away 4. The overall compact size and lightweight (less than 20g) allows for easy storage when not in use 5. Talk time up to 6 hours and standby time up to 100 hours from a single full charge.