·Brand : Realme·Model Number : RMA 66·Convert between music and freely made phone calls·TF card support·Support FM can receive high-quality stereo radio·Adjusting size, Lightest·Specifications USB Charging: DC 5V·Distance: 10meters·Frequency response: 50Hz - 20KHz·Output power: 35mW·Charging Time: 1 hours·Sensitive: 90dB / mW·Impedance value: 32 ohms·Duration: 4 hours·Card range: 128M-32GB·Weight: 250g·Microphone included : Yes·Connectivity : Bluetooth·Type : On Ear·Compatible with : MultiExternal Product