We hope our service reach your expectation! Features: - Bluetooth: V4.1 - With the mute and un-mute function you may stop and restore talking within a phone call at anytime - Equipped with LED indicator showing operating status - Volume can be adjusted freely with the +/- button - 2 x Changeable ear hook allows to hold ear phone secure and comfortable on left or right ear - Perfect match with PS3 player - Maximize fun of online game during playing - Also allows chatting online with a booth installed desk top or laptop computer - Specification: - Workable distance: 10m - Frequency: 2402MHz~2480MHz ISM Band - Talk time: 4hours - Standby time: 120hours - Voltage: 3.3-4.2V - Fully charged within 3 hours - Build-in rechargeable Li-ion battery charged by USB cable (included) - Weight approx: 15g - Compatible with all Bluetooth cell phone, tablet and PS3 Packaging(what's in the box): - 1 x Wireless Bluetooth Headset - 2 x ear hook - 1 x USB charging cable - 1 x English user manual Your satisfaction, our impetus!