Key benefits Flexible power options and wide trigger compatibility enable easy integration into embedded and unattended devices. Builtin 12W amplifier and a standard 3.5 mm audio interface simplify connection to speakers and external amplifiers. Broad storage and file system support with FAT16/FAT32 and 32GB TF card allow convenient content management. Multiple playback modes and trigger types provide versatile control for prompts, announcements, alarms, and prompter functions. Compact and rugged package with MP3 playback module delivers reliable audio for small form factor applications. Core features and specifications Sampling rates supported: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz File system support: FAT16 and FAT32; supports 32GB TF card Power supply options: two versions available — 712 V DC input or 110230 V AC input Volume control: adjustable via a simple knob Input triggers: supports 512 V level trigger Amplifier and speaker compatibility: 12W amplifier; can drive 48 ohm speakers (builtin 12W or external) Working modes: single song without loop; single song loop; longpress to play and release to stop Audio interface: standard 3.5 mm audio interface for speakers or amplifiers Playback module switching: supports single song nonloop and single song loop modes Trigger styles: supports inching trigger and long trigger MP3 playback module: MP3 voice playback module with voice announcer, alarm, prompter; 12V DC power supply version Power supply current: more than 500 mA (DC 712V) Dimensions: 80 x 63 mm Input trigger port: 8 (touch VCC terminal 512V trigger) Speaker output port: 12W, 48Ω Audio output: 3.5 mm stereo headphone socket (for connecting speakers or external amplifiers) Technical details Input trigger port: 8; touch VCC terminal (512V) trigger Speaker output: 12W, 48Ω Audio output: 3.5 mm dualchannel headphone socket Size: 80 x 63 mm Power supply: DC 712V (current > 500 mA) or 110230V AC (version dependent) Content and connectivity are designed to support direct connection to speakers or external amplifiers via the 3.5 mm output and 48 ohm speaker load Applications and use scenarios Information kiosks, museum exhibits, and retail displays that require reliable, unattended voice prompts, announcements, and prompts with simple trigger control Small signage, alarms, prompters, or classroom/office devices needing MP3 playback, alarms, and voice announcements with a 12V DC supply option Embedded projects and DIY speaker systems that require a compact MP3 playback module with a dedicated trigger input, 12W amplification, and flexible playback modes Notes Content playback is driven by the MP3 playback module with selectable modes for nonloop and looped playback The device supports longpress and inching trigger inputs for flexible control strategies Content is stored on FAT16/FAT32formatted storage (up to 32GB TF card) and played back through the integrated 12W amplifier or connected external speakers