General description Wireless Motion Sensor Alarm designed for home and store security, featuring a remote transmission range of up to 280 meters under cover. Includes 2 sensors and 1 receiver, providing a versatile alarm system for various applications such as homes, shops, hotels, offices, and factories. Technical specifications Maximum alarm sound: 113dB Power supply for receiver: AA battery (not included) or USB 2.0 micro-B (not included) Power supply for motion sensor: AAA battery (not included) or USB 2.0 micro-B (not included) 5 model options: Welcome Mode, Sound Mode, Alarm Mode, Color Light Mode, Night Light Mode