WiFi smart IR RF remote control with USB interface requires no adapters or batteries. It can be powered from any USB port, including TVs, computers, and USB plugs. Key benefits and features USB powered, plugandplay: No batteries needed and no extra adapters. Works with diverse USB ports on TVs, computers, and USB hubs. Broad device compatibility: Infrared devices: TV, set box, media player, and other IR controlled appliances. RF devices: Light, switch, roller blind, garage door, blind, and similar RF operated devices. Smartphone is a universal remote: Enables your phone to control both IR (38KHz) and RF (433.92MHz) appliances. Reliable indoor range: Up to 10 meters of remote control coverage with stable signals. Specifications and usage notes Supports IR at 38KHz and RF at 433.92MHz to cover a wide range of common household devices. Designed for indoor use with stable signal performance over the stated range. No batteries required; USBpowered operation simplifies setup and placement. Use scenarios Living room convenience: Use your smartphone to control the TV, set box, and media player from the couch or chair over a WiFi connection. Comprehensive home control: Manage RF devices such as lights, switches, roller blinds, and garage doors from a single app. Easy deployment: Place the remote receiver near a TV or computer and power it directly from an available USB port.