Card reader Plush Speaker ply music in SD card USB
built-in rechargeable lithium battery convenience to carry and elegance to

input voltage: 6V ~ 12V, 400MA
Output power: 3W +3 W
Audio input: 3.5mm
Playback Frequency response: 200Hz-12kHz
Speakers: 4 ohms 2 W 50mm 40hms
Signal cable: 22cm Output power: 3W +3 W

play music by SD card, USB, used for MP3, mobile phone, PC etc. 

built-in rechargeable lithium battery