Smart Wireless Eyeball Shape PIR Sensor Features: Smart Wi-Fi PIR Sensor, which works in one small battery (included) that can last for approx a year. Very Small in eye ball design. Get notifications on your smartphone as soon as door sensor is triggered Supports Wi-Fi network (2.4G only) fast connection, easy installation in a few seconds Wi-Fi Universal Remote Control with Advanced and remote motion detection Auto-set scenes, customize as per your requirement, Free to download ENERJSMART APP for iOS Android system Compact design to save your space Works with IFTTT. Combine other ENER-J products with this product and make your home a complete smart one Specifications: Dimensions: H:4.5 x W:4.5 x D:4.5 cm Colour: White Guarantee:1 Year Material: Pvc Model Number: SHA5266