Indoor Wi-Fi wall tap, monitor energy usage, wireless smart switch timer with USB Control electrical devices from anywhere, using a smartphone or tablet. Monitor energy usage and costs at any time. Includes 2 USB charging ports (not Wi-Fi controlled). Expand the system by adding up to 12 smart switches. Programming options include multiple on/off settings, countdown, random, and sunrise/sunset. Affordable home automation works with existing Wi-Fi router and free WiOn app. Manage computers, gaming consoles, entertainment centers or any device that can be powered off when not in use for energy savings.