No wires. No limits. Designed to enhance the experience of a compatible Bluetooth® technology enabled phone, the Motorola Wireless Headset HS850 also stores information and wirelessly interacts with compatible Bluetooth 1.1 or 1.2 compliant devices, including handsets, PDA's and computers. This headset offers up to approximately 8 hours of talk time and approximately 200 hours stand by time from a single full charge. Exclusively designed microphone flip opens for call readiness. Simply open the unique foldable microphone boom to make a connection with your compatible Bluetooth® enabled phone and close to disconnect. The multifunction button allows you to place, receive or end calls. All with the push of a button. With Bluetooth® wireless technology, devises work together up to 10 meters (30 feet) away. Pair with your compatible Bluetooth® enabled PC for hands-free Voice Over IP use*. Removable earhook allows the headset to be worn on either the left or right ear. With volume orientation technology the headset can be worn on either ear and the volume controls can be set to always be upright. *Network dependent feature, not available in all areas. Airtime, data charges, and/or additional charges may apply.