Can play mp3 format audio files in USB-disk and TF card; Also can connected with mobile, mp3, mp5, pc etc devices which has audio output; With FM function; Digital display.

 

Power amplifier output power: RMS 3W (THD=10%)
SNR: 95db 
Input interface: 3.5mm stereo audio line input
Speaker:  40mm
Input power supply: Lithium battery drive
Play time: 40－60 Minutes
Charge time: ≥ 2 hrs
External rechargeable lithium battery
Supply voltage: 5V    
Battery capacity: 400mAh
Output power: 3W
Speaker spec.: 4Ω3W Φ40mm*2
Frequency response: 100Hz-20KHz