Features:
1)Support SD/USB/SMM card, Auto play function
2)with Aux-in connection, support: MP3/MP4, computer, music mobile & iPod, etc
3)Stereo sound design, excellent ultra-low sound, wooden body
4)High-efficiency digital Amplifier,  enjoy pure and beautyful music
5)Music styles of Classic/Jazz/Pop/Rock/Bass
6)Portable speaker, a very good friend for tours & outdoor activities.
7)LED display, with remote control
8)Dual power supply modes: built-in Lithium rechargeable battery & USB power supply (5V, DC)
9)Support FM radio (optional)  

Spec.:
1.Support SD Card/U Disk memory card (MAX.4GB)
2.Speaker Power:4Ω 3W*2
3.S/N Ratio:≥85dB Audio Frequency:150~18KHZ
4.Audio interfaces: 3.5mm mini stereo plug
5.Built-in rechargeable lithium battery 600MA
6.Charging time:1~2hours
7.Power Supply:input:5V output:3.7V 800MA