TDS055 ( S-055) mp3 module Features 

> Provide RS232 serial interface (TXD ,RXD)for MCU control
> Select the exact mp3 file to play by MCU
>With stable performance , and strong anti-jaming capability .
>Power supply DC 5V to DC 9V
>Dimension 50mm*30mm
>Support mp3 audio format
>Stereo audio output with perfect sound quality
>Memory type SD card (32Mb to 2Gb)
>Support thousands of mp3 files selecting
>Easy to upgrade the files in SD card .

Applications
a. Public place announcement system
b. Entertainment device sound effect system
c.Tourism guide device
d.High class gift and toys,robot
e.Announcer,alarm,adverting, background music systems
f. Selfservice audio navigation system in dining room, hotel,bank.
g.And other products need high quality and long duration sound.