Compliant with bluetooth V1.1 or V1.2 Support hands-free and headset profiles Works with any bluetooth mobile or connect to bluetooth-enabled PC for hands-free VoIP With bluetooth wireless technology, devices work together up to 10m (30 feet) away No cords-wireless connection to mobile phone A more stable and comfortable fit for extended use Includes 3-way calling and mute Talk time up to 8 hours Standby time up to 150 hours Light weight: 17g Pairs with up to 8 devices One-touch control effortlessly allows us to power the headset, receive and end calls place callers on hold Adjustable earhook securely fits over either the left or right ear, User can easily adjust the volume and mute your call from the headset Blue light indicates headset status Unidirectional microphone allows for clear conversations in noisy environments Packing: bluetooth handsfree headset, AC travel charger, user manual