Features: 1.Large power, improving the link quality and coverage. 2.Ultra-low noise, suitable for various kinds of situation. 3.Portable size, easy to operate and use. Description: Simply plug and play, no software is required. Specifications: Transmission medium: wireless signal transmission Relay distance: 0.02Km Power requirements: 110~220V AC Scope of application: home roug Speed: 300m Size: 80*53*64mm Interface: USB interface Input power: DC 5V Signal rate: 2.4GHz: up to 300Mbps (dynamic) Covering area: 100m Package Included: 1* Wifi Wireless Broadband Amplifier Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.