2.4G wireless transmission using 2.4G wireless connection, say goodbye to the "" system, desktop refreshing and beautifulErgonomic comfort grip fits the palm curvature hand support is , long time use also no sorenessFast response, stable and efficient move and click can be performed instantlyUSB interface plug-and-play universal USB interface, not picky terminal, widely compatible, plug-and-playWireless transmission - sensitive and precise - comfortable hand keyboard computer, laptop, desktop computer, all-in-one computer can be usedModel No: OPM 280Product Size:113mm x 62mm x 33mmProduct weight: 58gTransmission : 2.4GPower supply: 1 *AA battery (battery not included)Return rate: 250Hz/sMovement speed: 30 inches/secColour:WhiteMaterial:ABSPackage Contents:1 x Wireless MouseOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.