Sonoff 4Ch R3 Smart Switch, 4 Independently Programmable Wifi Remote Time Switch Product Details Independently control 4 devices : Just need one Sonoff 4ch R2 that can make you connect and control four home appliances and electronic devices independently. Smart remote control switch: You can check your home appliance status anytime anywhere, and control them on/off with just a click on your smart phone or tablet via WiFi via APP eWeLink. It's no limit to the distance. Share control of devices to others: You can simply share control of your home appliances to others so that they can also turn on/off the devices remotely. Set time schedules for automatic control: It has single, repeating, and countdown timers that you can use to control home appliance on/off automatically. Works with Alexa: Link "eWeLink Smart Home Fan" skill. You can directly ask Amazon Echo/Echo Dot/Amazon Tap to turn on/off your Sonoff devices. Works With the Google Assistant: Link "Smart We Link" on Google Home app, start to voice control your Sonoff devices on Google Home.(Only eWeLink advanced users have access to IFTTT,costs 9.9USD and you will enjoy a full year of the privilege) Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.