Features: Powerful 20W music output delivers clear and loud sound quality, perfect for driving various speakers in applications like advertising, education tool, and toy development. The module supports MP3 and formats for versatile playback option. Flexible music input option include card and USB connectivity, allowing easy loading of music files with support for up to 32GB storage. Simply insert your storage device to play desired music content instantly. Precise 1to 1triggering function enables external control signals to activate specific music files, ideal for interactive applications such as toy, smart home devices, automated announcements. Serials port control interfaces allows seamless integration with microcontrollers or other devices, enabling advanced automation and customized playback for complex projects. compactly design with wide voltages ranges (DC6V-35V) ensures easy installation in space limited environments while supporting diverse power supply configurations for reliability performances. Specifications: Component:PCB, metal Size:Approx.50x50mm/1.97x1.97in Working voltages:DC6~35V Support most storage: 32G memory card Decoding format: MP3, Support sampling rate (KHz ):8/11.025/12/16/22.05/24/32/44.1/48. 24bit output,support dynamic ranges: 90dB,SNR 85dB. Output most 20W driving 4Ω loudspeaker, output most 10W driving 8Ω Package Includes: 1pc Voice Playback Board note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.