... Voice dial, • Strong compatibility,can pair for most of bluetooth phones in the market TECHNICAL SPECIFICATION: 1. Receiving and sending ... distance: 10 meters. 2. Bluetooth specification: V2.1+EDR 3. GFSK(Gaussian Frequency shift keying ... )4. Bluetooth chip: CSR5. Bluetooth profiles supported: HSP,HFP,A2DP,AVRCP6.Talking time:9H7 ...