... 4.support many format,mp3, ape,and so on 3. rechargeable battery .sup Soundbox For Movement from TF card Features: •High quality ensure ... lithium battery, may meet computers, mobile phones, MP3, etc, can also play audio source TF card and so on storage media audio file ... playback time.>Play time:10~22 hours with loudspeaker(depend on the volume)70 hours with earphone.>Charge time: USB charge:7 ...