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Bluetooth version: V2.1+EDR Operation range: Up to 10 metersDual micphones,Noise canceling,Echo cancelingMulti Paring: Supported to connect 2 mobile phoneSupported File: Bluetooth Headset and Handsfree

Talk time: Up to 4 hours,Standby time: Up to 120 hourssize:49.4x18.3x12.1（mm),Weight About: 12 GramsBattery Type: Rechareable Poly-Li BatteryGenernal Feature: pick up a call, end a call,reject a call,call redial mute,transfer a call,Volume adjustment,voice-dial.