1). Either the ear hook or the ear pulg. 2). Support headset,handfree profile 3) .Redial the last call ,Reject call. Features: 1). Either the  ear hook or the ear pulg. 2). Support headset,handfree profile 3) .Redial the last call ,Reject call. 4). Volume adjustable. 5). LED indicates connection. 6). Faster connecting, clear sound, anti-interference Specification: 1) BT protocol: version 2.0 2) Frequency: 2.4 GHz 3) BT range: 10meters. 4) Net weight: 9.5g 5) Power supply:DC5.1V/120Ma 6) Working volt: 3.7V 7) Battery:  rechargeable Li-Ion  battery 8) Talking time:up to  3 hours 9) Standby time: up to 50 hours 10) Charging time: about 2 hours. 11) Color: Black,Blue,White,Silvery,Red Accessory: 1).Charger(optional). 2).USB Charging line. 3).User guide. 4).Ear hook.

mini bluetooth headset