Rachio Smart Sprinkler Controller, 16 Zone 1st Generation, Works with Alexa Works with Alexa for voice control (Alexa device sold separately). Easy set-up often takes 30 Minutes or less; replaces current sprinkler controller box. Android or iOS device required for setup Operate from anywhere using a Wi-Fi connection to your mobile iOS, Google Android, or Web Application Free Rachio App puts the power of your sprinkler system in the palm of your hand Smart weather features can reduce your outdoor water use by more than 30%, saving you money Weather Intelligence - Watering is automatic based on real time weather and seasonal adjustments. No need to schedule it. Better data, smarter watering - Rachio Water Reports confirm how much water youre using and saving. Feel free to share your water savings prowess with friends. Pays for itself - Saves customers as much as 30% on their outdoor water use, giving them one of the fastest paybacks on any smart home device. EPA WaterSense Certified Product - Check with your local water municipality for rebate options. Rebates can range up to 100% of retail value. The most connected sprinkler controller. Integrates with Nest, Amazon Alexa, IFTTT, Wink, Control4, Nexia and other top tier home automation systems for expanded functionality Android, iOS and laptop versions of the app give you complete control at home or across the globe.