Brand CybeBlue Model BH08RC Quantity 1 piece(s) Color Black Function Handsfree Compatible Cellphone Iphone Phonebook Capacity 600 Bluetooth Version 3 Transmit Frequency 3Mbps Transmt Distance 10 m MIC Effective Distance 1~4m SNR 68 dB THD Frequency Response 20Hz~15KHz Interface/Port USB 2.0 External Card Max. Support No BQB Certification No Talk Time 4 H Standby Time 100 H Charging Time 1.5 H Other Features Bluetooth version: Bluetooth v3.0; Supports headset hands-free protocols; Transmission range: 10m; Supports two devices connection at the same time; Built-in 80mAh rechargeable lithium polymer battery; Memory matching + echo cancellation + voice prompts Packing List 1 x Bluetooth headset 1 x Car charging dock 2 x Earbuds 1 x Chinese user manual