The Mighty Mule Wireless Driveway Alarm System FM231 is a black outdoor transmitter powered by solar energy, making it a convenient and environmentally friendly choice for home surveillance. With smart home compatibility with Amazon Alexa, this wireless alarm system offers Bluetooth connectivity and operates on a Powerline/UPB and Wi-Fi network. Weighing 2.4 lbs, this model from the year 2016 is designed for outdoor use and features audio alarm surveillance technology, providing a reliable and secure option for monitoring your driveway.