Features: 1) Compatible with Bluetooth-enabled mobile phones that support headset and handsfree profiles 2) Enhanced audio performance 3) Up to 8 hours of talk time and 150 hours of standby time 4) Multi-function button to control 3-way calling, call start and end, hold, mute 5) Removable earhook to allow the headset to be worn on either ear 6) Advanced volume controls include orientation technology to assure that volume controls will always be upright 7) Blue LED light to notify when the headset is in use, or you can turn off this feature 8) Bluetooth 1.2 provides quicker pairing, better audio with less dropped calls and reduced interference from other devices Packing: original retail packaging