Doorbell with presence detection, separate infrared alarm, wireless smart sensor--BIEMMEDUE

The doorbell automatically greets customers with a "Welcome," so your staff don't have to constantly look up, ensuring a warm welcome. Thanks to infrared technology, this motion-activated doorbell automatically plays a voice or music message when someone enters or leaves the premises. It's the ideal greeting aid for shops, restaurants, supermarkets, and pharmacies. 【Infrared Detection, Automatic Activation】 360° all-around detection: Wide detection angle, no blind spots; Detection range: 3 to 8 meters (model dependent); Intelligent motion detection: Automatic activation; Contactless: No manual press required, hygienic and convenient. 【Selectable Language/Music, Adjustable Volume】 Welcome message: Integrated welcome message in Chinese, French, or other languages (model dependent). Custom recording: Some models allow you to record your own messages (e.g., "Welcome, please choose your own"). Various music options: Classic ringtones, melodies. Volume control: Multiple volume levels for different environments. Mute mode: Option to mute the sound, with only the indicator light flashing (on some models).