... -ion battery;Power Supply:Lithium-ion,Computer-USB-in,DC-in Compatible Micro SD/TF/U-disk colour: Black Blue Gold ... Red Silverspecification: 1.Built-in Lithium-ion battery;Power Supply:Lithium-ion,Computer-USB-in,DC-in2.Compatible mobile/computer/MP3/MP4,,Compatible Micro ... :3W×26.Frequency response:150-18KHz,SNR≥80db 7.Built-in FM Radio,radio module,automatic atation search,pristine sound quality ...