... polymer battery Specifications: Chip: CSR8645 Operating Range: Above 10m Bluetooth Profiles: HFP ,HSP,A2DP,AVRCP,APTX Noise reduction: CVC6. ... s included: 1 X Bluetooth Headset 1 X USB Cable 6 X Silicone Ear Buds 6 X Ear hooks 1 X Buckle ... wear, strengthen bass effect.4. High sensitive microphone.Product Parameters:Bluetooth Version4.1Bluetooth protocolHSP,HFP,A2DP and AVRCPSupportSBC , MPS decoder ...