* Take Calls w/Built-in Microphone * Talk Time: Up to 10 Hours * Standby time: Up to 180 Hours * Frequency: 2400.0 - 2483.5MHZ * Average Charging Time: 2-3 Hours * Music Playing Time: Up to 8 Hours * Noise-canceling stereo sound drivers * Built-in Version 3.0 Bluetooth technology * Listen to your favorite music from Bluetooth-enabled devices * Unlock more possibilities - Can be paired w/2 mobile phones * Bluetooth profiles supported: headset, hands-free, A2DP & AVRCP * w/built-in Bluetooth technology you can stream audio directly from your Bluetooth enabled device * w/crystal clear wireless performance -- Works w/iPhone, Blackberry, Droid, iPads, Tablets & much more! * Dimensions: 5.9-in L x4.3-in (W) x2.95-in H * Sold as: Unit * Weight: 0.51 lbs.