... call center headset, low end and long talk time 4.Bluetooth headset with adjustable volume and 10 meters effective range 5.stylish ... to 6H,Standby time:about 160H 10.CE,FCC,RoHS approval Product Specification:Bluetooth Version: v2.1+EDRProfiles: Headset, Handsfree, AVRCP ... Rechargeable Li-ion Battery 3.5mm earphone jack Included earphones with built in MIC Music playing controls- play, pause, stop, ...