For the most uncompromising user, the Motorola Universal Bluetooth Headset H710 provides all of Motorola's most advanced features in one of the most discreet headsets. H710 offers the latest echo and noise reduction technology so others can hear you quietly. Audio is 25 percent clearer than previous headsets and volume will automatically adjust as the background noise gets louder. There is also a built in battery meter to help prevent unexpected battery runouts. The Motorola H710 also allows you to make and receive calls from two phones using one headset.