Devmo Voice Playback Module Mp3 Trigger Amplifier Class D 5W 64Mbit Flash Features: 1 . Support MP3 and WAV decoding format. 2 . Support sampling frequency (KHz) : 8/11.025/12/16/22.05/24/32/44.1/48. 3 . 24-bit DAC output, dynamic range support 90dB, SNR support 85dB. 4 . Support 64Bbit(8Mbyte) Flash memory. 5 . Support UART serial port control voice broadcast function. It can control playback, pause, selections, turn up and down volume and other functions, the largest selection of 65535 songs. The baud rate is 9600 bit/s. 6 . Support I/O trigger function, 8bit I/O ports can trigger 8 musics or 8 I/O combinations to trigger 255 songs. 7 . Support One_line single bus serial port control, which can control playback, pause, selection, turn up and down volume and other functions. 8 . Support 3 configuration I/O for mode selection to make 7 work modes. 9 . Built-in 5W Class D amplifier circuit and can directly drive 4ohm 3~5W speaker. The number on the corresponding DIP switch: CON1-Dialed to the digital end is low level (0), dialed to the ON end is high level (1) CON2-Dialed to the digital end is low level (0), dialed to the ON end is high level (1) CON3-Dialed to the digital end is low level (0), dialed to the ON end is high level (1) Parameters Work Voltage:DC 5V Working Temperature range:-20?~85? Working Humidity range:0%-95%RH Size :35*35*4.5mm Product Features Support MP3 and WAV decoding format?onboard 64Mbit (8M bytes) Flash storage, can be connected to a computer via a USB cable to update Flash storage audio files UART serial port control voice broadcast function?With control playback, pause, song selection, volume addition and subtraction functions. Up to 65535 tracks can be selected, and the baud rate is 9600 bit/s 24-bit DAC output, dynamic range supports 90dB, signal-to-noise ratio supports 85dB Support 64Bbit(8Mbyte) Flash memory?no memory card required Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!