This is an MP3 card reader / speaker. It can play music which is stored on an SD/MMC card. It is designed as an easy way to enjoy and share music. Easy to carry and still with the superior sound quality! You can use it very easily because it doesn’t need to be connected to a music source! You can carry it very easily because of the very small size! You can play it all day because it has digital amplifier! You can share with your friends because it has good sound quality and excellent volume! Easy use! Small size! Good sound quality! That’s what you get from a S3 speaker!

Features

Built-in high performance 16-bit DSP and a 16 bit sigma-delta D/A converter with earphone power amplifier.

Support MPEG-1/2/2.5 layer 1/2/3. WMA decoder.

Card reader: Support USB2.0 card host interface : Secure Digitalâ„¢ / Multi Media Cardâ„¢ (SD/MMC);Supports FAT12, FAT16 or FAT32 file system format; Supports up to 16GB SDHC card

Built-in high performance class D digital amplifier. and digital volume control.

40mm neodymium magnet micro driver speakers

Power supply: Two AA batteries; PC/Notebook USB; USB power adapter; 8 hours play time when using AA alkaline batteries at normal volume levels.

Flexible software upgrade via USB interface.

With bracket so the speaker can stand up when needed.