ejeas motorcycle helmet bluetooth 4.1 headset e1 intercom speakers headphones communication systems handsfree calls for motorbike skiing ejeas e1 is designed specially for the motorcyclist, with easy installation and great hd stereo sound. automatically answering call, listen to music, connect up to 2 bluetooth devices(phone/gps navigation/mp3 etc.)<br><br> thanks to the latest bluetooth and the advanced digital signal processing technology inherited, the e1 offers the best sound quality for both incoming and outgoing sound in its class. also, its super thin and compact form factor contribute higher performance for sports bike riding.<br> <b>item specification:</b><br> battery capacity:270mah battery. <br> bluetooth chip brand: csr 8635 <br> bluetooth version: 4.1 <br> bluetooth range: 10 meters <br> frequency: 20hz-20k hz <br> usb charger power: dc5v 500ma<br> charging time: 2h <br> standby time: 160h <br> talking time: more than 12h music playing time:more than 12h<br> <br> <b>connect 2 mobile phone method of operation:</b><br> connect the first one: in the off state of e1, long press the power button about 5s until the red and blue light flashing alternately,then turn on the bluetooth of mobile phone, search“ejeas-e1”and pair, then you will hear voice prompt"'successful"with blue light flashes slowly.<br> connect the second phone: in the off state of e1, long press the power button about 5s until the red and blue light flash alternately, then turn on the bluetooth of the mobile phone, search“ejeas-e1”and pair, then you will hear voice prompt successful" with blue light flashes slowly.<br> turn off e1, then turn on, clicking the“ejeas-e1”to choose the first one or the second phone.<br> <br> <b>package included: </b><br> 1* e1 motorcycle bluetooth headset<br> 1*usb cable(50cm)<br> 1*user manual<br> 2*magic sticker<br>