Features: - Made of high-quality material, durable and sturdy, anti-scratch and corrosion-resistant. - Easy to install and use, no wires required, convenient and practical. - Built-in PIR motion sensor, when the motion is detected, the alarm will be activated. - Ideal for the front door, back door, garage, shed, outbuildings, and etc. - Used for protecting your property against unwelcome intruders. Specifications: Color: As shown Material: ABS Powered by: 4 AA batteries (Not Included) Voice: 105dB Viewing Angle: 110 Degrees Range: 3-5 meters Size: 12.3 x 8.8 x 5cm .