1). Faster connecting, clear sound, anti-interference 2). Support bluetooth headset,handfree profile 3) .Redial the last call ,Reject call. 4). Volume adjustable. 5). LED indicates connection. Specification: 1) Bluetooth protocol: version 2.0 2) Frequency: 2.4 GHz 3) Bluetooth range: 10meters. 4) Net weight: 11g 5) Power supply:DC5V/80Ma 6) Working volt: 3.7V 7) Battery: 45mA (Li- Polymer) 8) Talking time:up to 3 hours 9) Standby time: up to 50 hours 10) Charging time: about 2 hours. 11) Headset size: 112?4?1 mm Accessory: 1).Earphone. 2).USB Charging line. 3).User guide.
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