NineLeaf Motion Sensor Alarm Door Buzzer — 918ft Long Range, 17 Ringtones, 5 Volume Levels, 4-Color LED, Anti-theft Business Entry, Easy Install, 6PK

Quick overview: This NineLeaf motion-activated door buzzer is a compact anti-theft entry alert designed for businesses and homes. The system ships as a 6PK and delivers a wireless working distance of up to 918 feet (280 meters) between transmitter and receiver, making it suitable for stores, shopping malls, offices, factories, hotels, upscale clubs, homes and villas. A one-year warranty is included. Installation & placement: No wiring is required for the receiver — just plug it into a power outlet and secure it with the included self-adhesive tape. Mount the motion detector on a wall and remember to load the batteries before use. Adjust the detector’s sensing angle during setup to minimize false triggers. For reliable operation, this unit is intended for indoor use only; avoid direct sunlight and damp environments such as rainforests. Alerts & customization: Choose from 17 ringtones including 4 retail store welcome tones. The receiver features bright 4-color LED lights to complement audible alerts, and you can set one of 5 volume levels to suit your environment. For quiet situations, engage Silent Mode to receive a strong vibration alert rather than sound. Power & efficiency: The device uses advanced fourth-generation power-saving technology to extend battery life and reduce replacements. You can power the unit by battery or recharge it via micro USB for flexible, eco-friendlier operation. Where it works best: With long-range coverage and easy adhesive mounting, this door buzzer is well suited to shops, offices, hotels and other commercial or residential entry points where a convenient, low-effort visitor/entry alert is needed.