500M Bluetooth Interphone for Motorcycle Halmet 13

Maximum talking range 500 meters between two riders, real two-way wireless communication between three riders by Bluetooth systemUp to 120Km working speedUp to 7 hours talking timeSafe auto-receiving cell phone callsAdvanced A2DP & EDR Bluetooth profileStereo music/audio function (transmits from A2DP enabled cellphone/MP3/GPS)Wind noise DSP cancellationWater-resistance, all weather,Friendly for glovesIt can either be used for rider or for pillion.It can connect with four Bluetooth devices: a Bluetooth enabled cell phone, two these items(two riders or one rider and one pillion), an audio source which with a built in or a external audio Bluetooth transmitter.It is a multifunctional device for motorcyclists and skiers, it can be used:1)As a handsfree Bluetooth headset for cell phone callsWhile out riding or snow skiing, the auto answer feature of the internal Bluetooth profile enables safe automatic Handsfree answering of the phone call automatically. It also offers a call rejecting function.receive the cell phone calls even you do not need to press any button, you just need to rider your bike as normal, the process of receiving call will be automatic, after ring on of the call about 5 seconds; it will receive the call automatically. It also can offer rejecting call function.2)As a two way wireless full duplex interphone between riders or between rider & pillionThe Maximum communication range over a high clear line of sight path can reach 500m/1640ft! (This maximum range is not guaranteed).Typical effective range in city is approximately 300m/950ft. Please note that actual range will depend on weather conditions, terrain, presence of obstacles, i.e. a large vehicle, buildings non line of sight etc. Unlike a one-way walkie talkie, which is only half duplex i.e. it can not speak and listen simultaneously, It offers real-time talking like a normal telephone.It can connect with two other riders or connect with anther rider and his/her pillion.The rider can chose which person to talk withThe working speed can be up to 120Km!3) As a wireless Bluetooth music receiver and speaker, it has EDR and A2DP profilewith EDR and A2DP profile it can offer another important function--- listening to stereo music from A2DP enabled cellphone,MP3 or navigation audio information from GPS(this MP3 or GPS should has a built in audio Bluetooth transmitter)4)If your MP3, GPS did not have a built in audio Bluetooth transmitter, you only need to have a external audio Bluetooth transmitter (sometimes called an AV Dongle, you can find it easily in the market) to pair with them, then you also can enjoy this added functionality.5) As the speakers of your MP3/GPSIf your MP3 or GPS is not Bluetooth transmitting enabled and you have not a Bluetooth AV dongle, the BIM also offers another method of listening to the stereo music/audio info--- the simple wired method. Plug the audio source directly into the headset via the 3.5 mm stereo connection 500m Bluetooth Interphone,Bluetooth Intercom,Walkie Talkie