Operating Range: Up to 918ft Chime Tunes: 36 Selectable Chimes Volume: 4 Volume Levels from 113dB to 25dB LED Flashing Light: 4-color LED light (Red/Blue/Green/White), 4 adjustable brightness levels Modes: Welcome, Doorbell, Alarm, Colorful Light, Night Light Supports pairing with up to 32 magnetic sensors, vibration sensors, or PIR motion sensors Ideal for business, office, store, garage, apartment, home security, child safety, and shop door entry alerts 5 Modes: 1. Welcome Mode: Plays "Welcome" in 5 languages, suitable for shops, stores, restaurants, supermarkets 2. Doorbell Mode: Door open chime with 36 selectable tunes 3. Alarm Mode: Up to 113dB alarm to help deter intruders and alert occupants 4. Colorful Light Mode: Silent operation with 4-color lighting, suitable for quiet environments 5. Night Light Mode: Activates as a floodlight when the magnetic sensor is triggered, with 4 adjustable brightness levels Color: White Material: ABS Package Contents: 1 x Alarm 1 x Receiver Note: Other items not included. Lighting and display differences may cause slight color variations between the image and actual item. Measurement may vary by +/- 1-3cm.