Compatible with MP3,WMA,WAV formats FM function Battery loader from USB include

Frequency range of receiver: 76-108MHzS/N ratio: >90dBTHD<1%Frequency response: 20Hz-20KHzCharging time: 2.5hoursWorking temperature: 0~50Power supply: 320mA/h rechargable batteryContinuous working time: More than 6 hours based on the volume at 1/3 level

Plug-card Reader Headphone