... Stereo Headset S1000 for mobile phone: 1.CSR chipset 2.first hand price 3.Support A2DP,ACVRP,HSP. Stylish Black ... phone/computerFeartures: CE,ROHS,FCC and BQB ApprovalBluetooth Version 2.1+EDRSupports A2DP AVRCP, HSP and HFPEnjoy stereo music ... ,volume up and down Technical Paramiter: Frequency range:2.4GHz-2.48GHzTransmission power:class2Transmission distance:10MOperating voltage:3.6VOperating current ...