This motionactivated MP3 audio player delivers simple, reliable audio alerts and messages for security, retail, and interactive applications. It combines straightforward installation with sound and a sensitive motion sensor so you can add attentiongrabbing audio without complex setup. Key benefits Quick installation and use: USB or battery powered for flexible placement. Plug and play design means no complicated configuration. audio playback: Supports MP3 audio files so you can use prerecorded messages, greetings, or alarm tones. Two selectable volume levels let you adapt playback to the environment. Reliable detection: Advanced motion sensor detects human body movement up to 4 meters for timely activation. Clear, audible output: Builtin 8 ohm 1W speaker provides clear playback suitable for small rooms, doorways, and displays. Flexible power and placement: Run from a USB power source for continuous operation or by battery for temporary or remote placement. Features and performance Motion detection range: up to 4 meters for effective coverage of entryways, counters, or compact spaces. Audio format: MP3 playback for easy use of custom messages. Volume control: two volume settings for discreet or more noticeable alerts. Power options: USB powered for constant operation or battery powered for portable installation. Integrated speaker: 8 ohm 1W speaker tuned for clear voice and alert playback. Typical use scenarios Retail and service counters: Play a short greeting, thank you message, or attention alert when a customer approaches the counter. Home or office entryways: Act as a presence notifier to alert occupants when someone approaches a door or corridor. Tradeshow displays and exhibits: Add motiontriggered audio to demonstrations or product displays without wiring or complex setup. Installation and operation Mount or place unit where motion is expected and connect to a USB power source or insert batteries. Load or select MP3 audio files and choose the desired volume level. The sensor activates playback automatically when human movement is detected within the 4 meter range. This device is designed for easy deployment and reliable, audio activation in a variety of smallscale security, retail, and display applications.