Remax S8 Earphones Bluetooth Wireless Sport with Mic Earphone Stereo In Ear Running Bluetooth Headset Fully Compatible all phone Technical Specification: -Bluetooth specification: 4.1+EDR -Bluetooth profiles:HEP1.6,   SHP1.2,  AVRCP1.4,  A2DP1.2 -RF range:10m -Noise reduction:CVC6.0 -Stand- by time:about 180 times -Calculation conversation time:bout 8 hours -charging time: about 2 hours -Weight:23.5g   Compatiable with: 1.For iphone 4 4s iphone 5 5s 6 6S Plus 2.For samsung galaxy S serial cellpones 3,For samsung galaxy note serial cellphones 4.For ipad 2 3 4 ipad mini 5.For samsung galaxy tab note tablet pc 6.For Xiaomi ,Huawei and etc.   Tips: If you buy more than two eaphones, please feel free to contact us, we will give you 2USD discount !!! and Support batch Wholesale !!!