Link 381 bluetooth3 0 EDR Car Audio Music Receiver with MIC For PhoneDescription 1 bluetooth 3 0 EDR2 Support CLASS 23 Support A2DP4 Transmission distance is not less than 10M5 NFC function is optional6 Inner 250mA Li battery7 Size d 52 x h 15mm8 Colors Black White We will send white if you want black pls make notes Features 1 Music call switching freely and relaxed Support mobile computer so on product that with bluetooth function 2 Two link can connect two bluetooth devices at the same time3 Simple operation normal speaker become hands free bluetooth speaker magically portable forvehicle mounted systems 4 Over length receiving distance can reach more than 20 meters in open space without obstacle 5 Supter clear and flow conversation effect 6 NFC function per youroptionmake connecting much easier and more convenient 7 bluetooth signal light effect make it much elegant and noble 8 Adaptor or computer USB charging is per youroption 9 Inner Li battery over length batery working time low power consumption Package Included 1 X Link 3811 X USB Cable1 X Audio Cable1 X ManualPicture Details