Brand ROMAN Model S301 Quantity 1 Color White Bluetooth Version V2.1+EDR Ear Coupling Earbud Talk Time 8 Hour Standby Time 80 Hour Operating Range 10 meter Compatibility v2.1/ v2.0 / v1.1 / v1.2 Microphone Yes Radio N/A Power Supply Built-in Battery Built-in Battery Capacity 130mAh Compatible With Iphone 5 / Iphone 4S / Iphone 4 / Iphone 3g S / Iphone 3 / Android phone / Nokia etc. BQB Certification No Other Features V2.1 bluetooth chip with DSP technology of reducing noise provides you with a clear call environment; Suitable for all cell phones and PC computers with bluetooth and produces stereo effect. Packing List 1 x Earphone (48cm-cable) 4 x Earbuds 2 x Ear-hook 1 x EU charger (30cm) 1 x User guide 1 x Chinese/English user manual