Sheng Electronic Technology Co., Ltd., Shenzhen East is committed to the microcontroller chip software program developed technology, electronic products popular programs and modules, research and development, is mainly a consumer goods, collection development, production and sales of integrated industry-leading Electronic Technology Company one microcontroller development, IC sales agent, circuit board production Mini Speaker MP3 reader module .2.1 Bluetooth audio design module Introduction II. modules Button Description 1. VOL + / - keys. shorter volume plus 1 minus 1 long compared to the volume continued to add / subtract up to a maximum of 40 or minimum 0. 2 MODE key. input switching key boot LINE IN state, pressed into the USB / SD card mode Press MODE key is transferred to the FM mode, press back to the LINE IN state. 3. NEXT key USB / SD playback status, press this button, it will switch to the current song under an FM playback state, Press NEXT to switch to the next saved radio station. attention to the first automatic closing station once only effective radio switch. 4. PREV key USB / SD playback status, press this button, will the current song switch to on a in FM playback state, press PREV to switch on a radio station saved Note the first closing automatically sets once, the be effective radio switch. contacts. Mr. Chung 13723797997,13410280834 site. www.dsytek.com, QQ.395202699 459 824 975 SCM development, the IC sales agents, circuit board production 5. PLAY / PAUSE key USB / SD playback status, press this button will pause the currently playing song in pause state, press this button to play the song is paused FM state, long press of the key for about 3 seconds, FM will automatically closing table. starting from 87Mhz until the first to receive the radio will automatically jump to 108MHz at play radio music. 6. VOL + / -, MUTE MODE conversion PREV, PLAY / PAUSE, NEX can bulk supplier to the speaker factory, and a number of individual customers. ◇ The main products The ATM chip microcontroller series with remote control function. infrared, 433M, 2.4G the laser pointer chip program 3. 2.1/5.1 multimedia audio chip with the program. mobile power module program 5. the LED Lantern lighting control chip and program 6 USB Speaker (2.0) chip and program . FM/MP3/WMA playback scenarios Car, speakers perm machine 9. hairdressing product development design 10 Bluetooth solution ◇