Trucker Headset bluetooth Wireless Earphone Hands-free Noise Cancellation w/ Mic

Features:Adopt advanced 4x anti-noise technology and DSP digital signal processing,so you can keep a very clear conversation when you talk;Compatible with all bluetooth mobile phones and other bluetooth devices, supporting one with two functions;Suitable for office use, with bluetooth adapter allows you to enjoy wireless fun when using SKYPE,MSN or Internet phone, clear call effect can provide convenience for you at work, completely free your hands.Specification:Model Number:A50728Color: Blackbluetooth Version: 2.1Wireless Working Range: 10MFrequency:2.4GStandby time: About 350 hoursCharging voltage: 5VCharging time: 8 hoursMicrophone sensitivity: -45dBTalk time: 20 hoursWorking voltage: 3.3-4.2VCharging current: 80mACharger power supply: 110V-240VNote:The color of the item may vary slightly due to photography and different PC monitor, and the size might be slightly errored due to manual measurement. Your kindly understanding would be appreciated.Package Included:1 x Trucker bluetooth headset1 x Charging Cable1 x User Manual