USB Doorbells Infrared induction doorbell Motion sensor alarm MP3 audio player, Adjustable volume + Two play modes

• High-quality ABS: The doorbell made of high-quality ABS material is durable, environmentally friendly, dust-proof and moisture-proof, ensuring stable use of the doorbell.
• Two playback modes: full loop playback / single loop playback. Press the A button to play the previous audio and the B button to play the next audio. It only supports playing MP3 audio, has two adjustable volume levels, easy to operate, and easy to use.
• Remote and strong signals: The maximum detection distance is 4 meters, and the signal can penetrate the obstacle well. For most families, it is long enough. Whether you are cooking in the kitchen or weeding in the garden, this doorbell will keep you informed and you will never miss your visitors.
• Support SD card: With SD card slot, support SD card external. You can copy the audio files from the SD card to Flash. Download audio files from your computer via USB interface using SD card (only supports MP3 audio)
• Scope of use: Built-in 8Ω1W speaker, built-in 32Mbit (4Mbyte) flash memory, widely used places, including supermarkets, offices, shops, shops, hotels, factories and homes.

Features: Only support to play MP3 audio, two levels of volume are optional. Human body induction, induction distance up to 4 meters. Built-in 8Ω1W speaker, built-in 32Mbit (4Mbyte) flash memory. Two playback modes: full loop playback, single loop playback. Press the A button to play the previous audio and the B button to play the next audio. With SD card slot, support for external insertion of SD card. You can copy audio files from SD card to Flash. Download audio files from your computer with a SD card via the USB interface. Power supply mode: three AAA batteries or USB power supply. Specifications: Condition: Brand New Material: ABS Color: White Power Supply: USB/3*AAA batteries (excluded) Audio: Only support MP3 Volume: Two levels Detection Distance: Maximum 4m Speaker: Built-in 8Ω 1W speaker Memory: Built-in 32Mbit（4Mbyte）flash memory Memory Expansion: Support Package List: 1 * Motion Sensor Doorbell 1 * Bracket 2 * Stickers