Features: Wireless desktop switch, portable and convenient, protecting your privacy Easy to install, with no additional computer driver installation.Support for hot plug PCIE requires no additional power cord-to reduce trouble with cabling Dual wifi reinforcement siginal, One-click upgrade, multi-person control; Support Tmallspirit, Xiaodu-voice, students voice control, display the computer states in real-time The product support 4 types of computer operation: Start-up; Shutdown; Forced shutdown ; Restart. Specifications: Item: Computer Remote Switch Length:approx 42.5mm/1.65in Support PC: PC with PCI-E Work with:Sinilink Weight:approx 12.45g Package Includes: 1 Set Computer Remote Switch Module note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.