Parameters:1.Bluetooth Version: Bluetooth V2.1+EDR2.The Transmission Distance: 10 meters3.Radio Frequency: 20HZ-20kHZ4.Charging Time: 3 hours 5.Support high-quality stereo music playback 40mm neodymium speakers6.The standard configuration beautifully packaged charging cable audio cable7.Suitable for all mobile phone models with bluetooth capabilitiesFeatures:1. USB interface can charge;2. With FM radio function: easily portable handy outdoor sports headphones sound awesome;3. High-quality speakers and sound chamber designed to ensure high-fidelity、 CD quality sound effects、 EQ mode;4. 3.5mm audio input universal port can be used as a headset other audio playback device to use;5. Support memory card: TF mini SD card6. Built-in battery Continuous working time: about 8 hours;7. Five sound options to meet the needs of different music8. Equipped with audio cable、 you can also use as a wired headset and microphonePacking List:1 x Bluetooth Headphone 1 x USB Cable1 X 3.5mm Audio Cable