Support TF card 
High-definition LED display screen, audio-visual 
Built in USB2.0 port, convenient to charge and download music 
With FM radio function 
MP3/Wma format play 
Audio output function 
Frequency: FM 87.5Hz-108MHz 
S/N: 87dB 
Decoding range: 8-320Kbps 
Dynamic range: 92dB 
Channel separation: 69dB 
Speaker: 57mm 4ohms 3W 
Power requirement: DC 5V 
Power output: 3W