Enhance your audio playback experience with this compact and efficient Motion Sensor Doorbell, designed specifically to support MP3 audio files. Crafted from durable ABS material and finished in sleek white, this device combines user-friendly features with versatile power options to fit a variety of settings. Key Features: · MP3 Audio Support: Exclusively supports MP3 format for clear and reliable sound playback, making it ideal for customized audio notifications or other applications. · Adjustable Volume Levels: Choose between two volume settings to suit different environments and preferences. · Human Body Induction Sensor: Advanced motion detection with an induction distance of up to 4 meters ensures prompt audio activation upon sensing movement. · Built-in Speaker & Memory: Equipped with an 8Ω 1W speaker for efficient sound output and a 32Mbit (4Mbyte) built-in flash memory that stores your audio files securely. · Dual Playback Modes: Offers both full loop and single loop playback modes to cater to your specific usage needs. · Easy Audio Navigation: Use the A button to play the previous audio track and the B button to play the next one, enabling effortless control. · Convenient File Transfer: Download MP3 audio files directly from your computer through the USB interface, facilitating easy customization. · Flexible Power Supply: Operates on either three AAA batteries (not included) or via USB power supply, providing versatile installation options. Specifications: · Material: ABS · Color: White · Power Supply: USB or 3 x AAA batteries (excluded) · Audio Format Supported: MP3 only · Volume: Two adjustable levels · Detection Distance: Up to 4 meters · Speaker: Built-in 8Ω 1W speaker · Memory Capacity: Built-in 32Mbit (4Mbyte) flash memory · Memory Expansion: Not supported Package Includes: · 1 x Motion Sensor Doorbell · 1 x Bracket · 2 x Stickers This Motion Sensor Doorbell is an ideal audio playback solution for interactive installations, door alerts, or promotional displays requiring motion-activated MP3 sound. Its durable construction, easy-to-use features, and flexible power options make it a reliable and convenient choice for both residential and commercial use.