Feature: 1. ECO FRIENDLY: Solar powered design with built in rechargeable battery for continuous operation. This is an eco friendly solar solution for driveway alarms that helps protect the environment. 2. LONG RANGE: Our driveway alarm easily detects motion within 30 feet, making it a valuable asset for enhanced safety. You can conveniently place it up to 800m away from the receiver, providing unrivaled flexibility. 3. APPLICABILITY: We utilize updated technology components and superior manufacturing techniques. Our system has been tested in the real world in environments with trees, buildings, walls and vehicles. In most cases, it can easily achieve a wireless range of 800m. 4. SAFE AND RELIABLE: We have spent a lot of time developing and testing our reliable infrared outdoor driveway alarm wireless detector that will reliably alert you to activity around your property! 5. IP55 RATED PROTECTING: The fully sealed design remains strong even when exposed to the elements. It has withstood dense forests, hail storms, wind gusts, heavy rain, heat and snow! Specification: Item Type: Driveway Alarm Material: ABS Transmitter Built in Battery: 1800mah Lithium Battery (Shipped with Built in Battery) Operating Temperature: ‑10℃ to 50℃ Transmission Range: 800m/874.9yd. Package List: 1 x Driveway Alarm1 x Screwdriver5 x Screws5 x Screw Sleeve