Features: Support 600M dualband transmission, stable and fast wireless networking connection, suitable for fast speed data transmission and smooth online experience. USB interfaces design, easy to carry and install. With the function of transmitting and receiving, it can flexibly meet the demand of wireless networking in different scenario. Highly performances enhances the stability of signal reception and transmission, providing a wide coverage. Supports dualband operation (2.4GHz and 5GHz), effectively avoiding channel interferences and ensuring smooth networking. Strong compatibility, suitable for most operating system. Specifications: Item: USB Wireless WiFi Receiver Transmitters Material: Plastic Speed:600Mbps Size:as Picture Control:RTL8821CU Connection:USB2.0 Frequency:2.4+5Gbps Note: Due to the problem of lighting effects and shooting, there will be tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment Package includes: 1PCS USB Wireless WiFi Receiver Transmitters