Overview:A business style bluetooth headphone， it is compatible with for PS3 game consoles， computer and most Bluetooth cell phones. Besides， the Bluetooth headset also can be connected with two Bluetooth phones at the same time. Features:Mono Bluetooth headset supports headset profile and handfree profile.Bluetooth version: Bluetooth V2.1， Class 2， compatibility with V2.0 & V1.2.Compatible with for PS3 game consoles and most Bluetooth cell phones.Noise cancelling technology provides crystal clear sound quality.Answer/hang up/reject/redial call and volume adjustable.With multipoint connection， the Bluetooth headset can be connected with two Bluetooth phones at the same time.Build-in rechargeable lithium battery.Compact and light-weight design for comfortable fit.(Note: There is only one side headset， while the other side is designed with concave ear cushion.) Specification:Bluetooth version: V2.1， Class IIFrequency band: 2.4Ghz-2.4835GHz， ISM BandWorking range: 10mSupporting profile: Headset & handsfreeConnection: Peer to peerTalk time: Up to 8 hoursStandby time: Up to 200 hoursCharge time: 2 hoursBattery capacity: 130MAHWorking voltage: 3.3-4.2VCharging voltage: 5VCharging current: 80mAColor: BlackItem size: Approx. 14 * 4.7 * 15cm / 5.5 * 1.9 * 5.9inItem weight: 43g / 1.5oz