mp3 amplifier,professional amplifier board

1.Features

*Supply voltage: DC 12V on-board voltage regulator circuit

*Output power: Direct drive 3W speaker

*Storage solutions: MicroSD card, and built-in SPI-Flash memory

*Large-capacity MircoSD card for long duration playback application

*SPI-Flash memory for storing short audio files

*On-board USB interface, connect to computer for downloading files

*Direct Audio output, can connect external amplifier for higher power

*On-board potentiometer to adjust the volume

*Size: 60 * 50 * 14mm

2.Multi-channel audio decoding module Playback Mode Description

Choose four different operating modes by DIP switch

Mode 1: Play 11 files , pulse re-triggerable

Mode 2: Play 11 files ,Pulse non re-triggerable

Mode 3: Play 11 files, Level hold cycle

Mode 4: Play 30 files by 5 * 6 matrix

3.Mode Selecting DIP switch

4. Connection

5.Application

*Security : Voice broadcast system , security voice prompts

*Explain categories: Scenic voice to explain, museums, galleries, art gallery project to explain,voice prompts

*Public Address : The blind community navigation

*Industrial Products: Industrial control voice guidance

*Toys: Children musical toys

*Evaluation : Bank Service evaluation system

And so on

Packaging Details: Bubble bag in box , pack in carton

Delivery Detail: 10-15 Days

Delivery by DHL,UPS,FedEx and EMS or by sea as your requirments.