SONOFF RFR3 WIFI DIY Smart Switch 433MHz RF Control Timer Light Controller APP Wireless Remote Control Home Module Work with Alexa Google Home Automation Kits Features:Remote Control: Manage devices from your phone, anywhere and anytime.Wide Compatibility: Support Amazon Alexa & Google Assistant to turn on/off devices.One For All: Make one device trigger on/off another one or groups of devices.RF Control: Control devices with a remote controller with 433MHz.Voice Control: Control SONOFF devices with the utilization of IFTTT supported app and services.DIY Modes: The DIY Mode allows you to use the REST API to connect SONOFF RFR3 with your existing home automation system.LAN Control: Turn on/off the device when no Wi-Fi access in LAN Mode.Share Control: Share devices with your family to control together.APP Control: Show the real-time status on the eWeLink app for devices.Monitor: Can connect an old phone to make it monitor and control devices. Connection:1. Search and download the APP "eWeLink" on the App Store or Google Play.2. Log in or Register an eWeLink account.3. Add the device. *** Please read the User Guide carefully before use. Specification:Brand: SONOFF RFR3Max Current: 10AMax Power: 2200WPower Supply: AC 100-240VGang: 1RF: 433.92MHzWireless Standard: IEEE 802.11 b/g/n 2.4GHzEnclosure Material: PC V0Product weight: Approx. 60g/2.12ozProduct size: Approx. 9.1*4.3*2.5cm/3.58*1.69*0.98inPackage weight: Approx. 70g/2.47ozPackage size: Approx. 9.5*4.5*3cm/3.74*1.77*1.18in Note:Item color may show slight aberration due to different shooting light and monitor display. Package list:1 * RFR3 WIFI Switcha2 * Wire Fastener1 * Jumper Cap4 * Screw1 * Quick User Guide