Versatile and User-Friendly Design: The MP3 Downloadable Wireless PIR Motion Sensor Activated Player is a versatile and user-friendly device that serves multiple purposes. It is designed to be a welcoming chime bell for shops and stores, providing a warm and personalized greeting to customers. The device is equipped with an infrared motion sensor that detects human presence within a 3-7meter range, triggering the playback of your chosen MP3 audio files. This feature makes it an ideal solution for creating an audible warning for restricted areas or assisting people with Dementia. Easy Customization and Setup: Setting up the MP3 Player is a breeze. It comes with a micro-USB interface that allows you to connect it to your computer for easy MP3 file updates. The device supports MP3 audio format, ensuring excellent sound quality. With two volume levels to choose from, you can adjust the volume to suit your needs. The device also includes a power-off memory function, which means it remember the last played audio file, ensuring that your greeting or warning is consistent every time. Reliable and Energy-Efficient: The MP3 Player is designed to be reliable and energy-efficient. It operates on standard 32Mbit (4M byte) SPI-flash memory, ensuring that your audio files are securely stored. The device is powered by 3 AAA batteries or USB power, providing flexibility in power supply options.(Not included batteries) The built-in 81 watt speaker delivers clear and audible sound, making it an effective tool for various applications. Whether you're looking to create a special door entrance greeting or raise attention in a point of sale display, this device is a for commercial and personal use. Audio Format: MP3 Detection Distance: 3-7m Detector Type: Infrared Motion Sensor Working Current: Less than 130mA (DC4.7V) Smart Home Platform: None Micro-USB Interface: Connects to computer for MP3 file updates APPLICATIONS: Create an audible warning for a restricted area. Audible reminders or procedures to assist people with Dementia. Audible security alarm. Create a special door entrance greeting. Raise attention and create impact by adding a speech, music or sound effects to a point of sale display Power Supply:3xAAA batteries(Not included batteries) Color:White Material:Plastic Package Contents: 1 * Door Bell Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.