Descriptions: Thisdeviceallowsbikerstotalkviabluetoothdirectlywithoutotherdevices. Youcanreceiveacellphonecallwithoutpressingabutton. YoucanenjoyyourfavoritestereomusicfromyourA2DPenabledcellphoneorMP3playerorperhapslistentotheaudionavigationmessagefromyourBluetoothenabledGPS. Youcandoallthesethingsevenifyouareridingorsnowskiing Features: Maximumtalkingrange500metersbetweentworiders. Worksasbluetoothhandsfreeforcellphoneatrangeofupto10meters WirelesscommunicationbetweenthreeridersbyBluetoothsystem. Suitedtoanysortofhelmetformotorcyclists. Upto5hourstalkingtimeUpto300hoursstandby. Safeauto-receivingcellphonecalls.Ifdonotwanttoanswerrejectandhangupwithonebutton. Supportvoicedialinglastnumberdial Listenmusic/audiowirelesslythroughA2DPfrombluetoothmusicdeviceorconnectGPS ControlcellphonemusicthroughAVRCP:forwardbackwardplaypause. Freelyswitchbetweenbluetoothcellphonebluetoothintercomstereomusic WithDSPforechocancellationandnoisesuppressiontechnologycrystalclearvoicequalityisguaranteedinahighspeed. Buttonpaneliswater-proofandsun-proofwhilethedesignisdurable Easyinstallation. Modernblackdecentdesign. Idealformotorcycleandskiinghelmet PackageInclude(inoriginalpackage): 1xBTheadsetrecievers 1xStereoHeadphones 1xHeadsetsclipwithfasteningscrews 1xACCharger/Adapter(USAUUKandEUstylesforchoosingwe\'llchooseoneaccordingtoyourlocation.) 1xUSBCable 1xmanual