Brand Roman Model S536 Quantity 1 Color White + silver Bluetooth Version V4.0 Ear Coupling Earbud Talk Time 2~6 Hour Standby Time 100~180 Hour Operating Range 10 meter Compatibility V2.1 + EDR / V3.0 + EDR / V4.0 and the earlier version Microphone Yes Built-in Battery Capacity 120mAh Compatible With The devices with Bluetooth V2.1 + EDR / V3.0 + EDR / V4.0 and the earlier version BQB Certification No Other Features Fashionable design newest function and excellent compatibility; It is also a headset which you can have fun in making a call and listening to music wireless; A good choice for you in your office driving and outdoor activities. Packing List 1 x Bluetooth headset with cable (24cm-cable) 1 x USB cable (15cm) 1 x Chinese / English user manual