--- product_id: 548257440 title: "DollaTek Voice Sound Playback Module Arduino MP3 Player Module UART I/O Trigger Class D Amplifier Board 5W 8M Storage SD/TF Card" brand: "dollatek" price: "B/.44" currency: PAB in_stock: true reviews_count: 9 category: "Dolla Tek" url: https://www.desertcart.com.pa/products/548257440-dollatek-voice-sound-playback-module-arduino-mp3-player-module-uart store_origin: PA region: Panama --- # 8MB Flash Storage 5W Class D Amplifier UART & I/O Trigger Control DollaTek Voice Sound Playback Module Arduino MP3 Player Module UART I/O Trigger Class D Amplifier Board 5W 8M Storage SD/TF Card **Brand:** dollatek **Price:** B/.44 **Availability:** βœ… In Stock ## Summary > 🎡 Elevate your projects with sound that speaks volumes! ## Quick Answers - **What is this?** DollaTek Voice Sound Playback Module Arduino MP3 Player Module UART I/O Trigger Class D Amplifier Board 5W 8M Storage SD/TF Card by dollatek - **How much does it cost?** B/.44 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/548257440-dollatek-voice-sound-playback-module-arduino-mp3-player-module-uart) ## Best For - dollatek enthusiasts ## Why This Product - Trusted dollatek brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact & Durable Design:** Sleek 35x35x4.5mm module built to perform in diverse environments (-20℃ to 85℃). - β€’ **Versatile Control Options:** Seamlessly manage playback via UART, I/O triggers, or single-bus serial port. - β€’ **Multi-Format Audio Support:** Supports MP3 and WAV with high-fidelity 24-bit DAC output and 90dB dynamic range. - β€’ **Powerful Onboard Amplifier:** Drive 4Ξ© 3-5W speakers directly with crystal-clear sound. - β€’ **Plug & Play USB Audio Updates:** Easily update audio files by connecting to your PC via Micro USB. ## Overview The DollaTek Voice Sound Playback Module is a compact, feature-rich audio solution integrating a 5W Class D amplifier and 8MB flash memory. It supports MP3/WAV formats with high-quality 24-bit DAC output and offers flexible control via UART, I/O triggers, or single-bus serial port. Easily update audio files through USB, making it perfect for professional-grade DIY audio projects and smart device integrations. ## Description Features:Support MP3 and WAV decoding format.Support sampling frequency (KHz) : 8/11.025/12/16/22.05/24/32/44.1/48.24-bit DAC output, dynamic range support 90dB, SNR support 85dB.Support 64Bbit(8Mbyte) Flash memory.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.Support I/O trigger function, 8bit I/O ports can trigger 8 musics or 8 I/O combinations to trigger 255 songs.Support One_line single bus serial port control, which can control playback, pause, selection, turn up and down volume and other functions.Support 3 configuration I/O for mode selection to make 7 work mode.Built in 5W Class D amplifier circuit and can directly drive 4ohm 3~5W speaker.Parameters:Work Voltage:DC 5VWorking Temperature range:-20℃~85℃Working Humidity range:0%-95%RHSize :35*35*4.5mmPackage:1 x Voice Playback Module Review: Works fine, a data sheet would be great! - Recognised by Win 10 PC as a USB drive by simply plugging into the Micro USB port. Comes pre-configured with 9 small MP3 files each one contains the voice of someone speaking the file number in Mandarin, simply replace these files with your own renamed ones and you are in business. The most important information relates to the 3 mode switches which change the way the playback mode is triggered, I have attached this missing information here for you. I could not find their own web site for help. It is possible to interface to Arduino as well, simple coding, again you need to search for that information. A very good value device for adding sounds, voice or alerts to your home projects. Does not come with data sheet, header pins or a USB cable, or a speaker but that keeps the cost down. UPDATE: Couple of extra points: These boards are very dependent on a good supply voltage - lower supply to 4.2V it will still function but only at lower volumes, so you will need a buck converter supply to run from a 3.7V LiPo cell. Another issue is that in stand-alone mode, triggering inputs with a solid ground (which remains grounded) produces constant repeat playback of the relevant sound file over and over. Only by removing the ground (or power) will stop the playback, these boards are not single-shot playback so it may be necessary to employ schmitt trigger circuits if you need to prevent this or use the Arduino UART mode. None of the three program switch positions have any affect on constant repeat playback, which is a shame for my application. Review: Works Great - I needed an mp3 player for a project of mine and came across this. It has 4MB of flash memory, which is plenty if you use mp3 format files. The real bonus is the 3-5 watt class D amplifier. The sound from this on board unit is very good. Now, depending on how you use it, you will need to follow the details in the pdf user manual which is downloadable. You can address the board using UART serial connection, or just wire the 8 inputs to buttons. The board can be powered via USB but only if there is no connection to the RX TX connections. That is, not a PC connection, but a plug-in USB charger should be ok. A good item and good price. ## Features - This module integrates I/O subsection triggering, UART serial port control, ONE_line single bus serial port control. - Onboard 5W Class D amplifier circuit and can directly drive 4ohm 3~5W speakers. - It can connect the computer to update audio files via USB cable. - 3.5mm audio interface, Micro USB download interface, button module in one module. - Support MP3,WAV decoding format.Support 64Bbit(8Mbyte) Flash memory. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BVQKYZ5C | | Box Contents | Voice Playback Module | | Brand Name | DollaTek | | CPU Model | Core M Family | | Compatible Devices | 3.5mm Audio-enabled Devices | | Country of Origin | China | | Customer Reviews | 4.1 4.1 out of 5 stars (36) | | Item Dimensions L x W x H | 35L x 35W x 5H millimetres | | Manufacturer | DollaTek | | Manufacturer Part Number | CP020246 | | Memory Storage Capacity | 8 MB | | Model Name | DollaTek Voice Sound Playback Module | | Model Number | CP020246 | | Network Connectivity Technology | 3.5mm audio, micro USB | | Operating System | Linux | | Processor Brand | DollaTek | | Processor Count | 1 | | RAM Memory Installed | 0.01 GB | | RAM Memory Technology | DDR | | Total USB Ports | 1 | | Unit Count | 1.0 count | | Wireless Compability | Bluetooth | ## Product Details - **Brand:** DollaTek - **CPU model:** Core M Family - **Memory storage capacity:** 8 MB - **Model name:** DollaTek Voice Sound Playback Module - **RAM memory installed size:** 0.01 GB ## Images ![DollaTek Voice Sound Playback Module Arduino MP3 Player Module UART I/O Trigger Class D Amplifier Board 5W 8M Storage SD/TF Card - Image 1](https://m.media-amazon.com/images/I/61DTjSVvJtL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works fine, a data sheet would be great! *by 4***Z on 22 March 2025* Recognised by Win 10 PC as a USB drive by simply plugging into the Micro USB port. Comes pre-configured with 9 small MP3 files each one contains the voice of someone speaking the file number in Mandarin, simply replace these files with your own renamed ones and you are in business. The most important information relates to the 3 mode switches which change the way the playback mode is triggered, I have attached this missing information here for you. I could not find their own web site for help. It is possible to interface to Arduino as well, simple coding, again you need to search for that information. A very good value device for adding sounds, voice or alerts to your home projects. Does not come with data sheet, header pins or a USB cable, or a speaker but that keeps the cost down. UPDATE: Couple of extra points: These boards are very dependent on a good supply voltage - lower supply to 4.2V it will still function but only at lower volumes, so you will need a buck converter supply to run from a 3.7V LiPo cell. Another issue is that in stand-alone mode, triggering inputs with a solid ground (which remains grounded) produces constant repeat playback of the relevant sound file over and over. Only by removing the ground (or power) will stop the playback, these boards are not single-shot playback so it may be necessary to employ schmitt trigger circuits if you need to prevent this or use the Arduino UART mode. None of the three program switch positions have any affect on constant repeat playback, which is a shame for my application. ### ⭐⭐⭐⭐⭐ Works Great *by E***X on 19 May 2025* I needed an mp3 player for a project of mine and came across this. It has 4MB of flash memory, which is plenty if you use mp3 format files. The real bonus is the 3-5 watt class D amplifier. The sound from this on board unit is very good. Now, depending on how you use it, you will need to follow the details in the pdf user manual which is downloadable. You can address the board using UART serial connection, or just wire the 8 inputs to buttons. The board can be powered via USB but only if there is no connection to the RX TX connections. That is, not a PC connection, but a plug-in USB charger should be ok. A good item and good price. ### ⭐⭐⭐⭐⭐ Good device though power it from header not USB. *by M***S on 19 September 2024* Bought this for a plasma gun prop from the Fallout series I'm making. It took me a while to figure out that you need to power it from the header pins and not USB as it wont do anything if the USB data pins are connected. It will kind of work powering it from USB but you need to pull the cable out slightly so the data pins disconnect. Overall a good little board and perfect for adding sound effects to my prop. ## Frequently Bought Together - DollaTek Voice Sound Playback Module Arduino MP3 Player Module UART I/O Trigger Class D Amplifier Board 5W 8M Storage SD/TF Card - CQRobot Speaker 3 Watt 4 Ohm Compatible with Arduino Motherboard, 2.54mm Dupont Interface. It is Ideal for a Variety of Small Electronic Projects. - AZDelivery DFPlayer Mini MP3 Player Module Audio Voice Board Shield compatible with Arduino Including E-Book! --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.pa/products/548257440-dollatek-voice-sound-playback-module-arduino-mp3-player-module-uart](https://www.desertcart.com.pa/products/548257440-dollatek-voice-sound-playback-module-arduino-mp3-player-module-uart) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-05-19*