[long distance sensing] Using BT 3.0 version of the transmission technology, transmission, distance of up to 10 meters [high-definition] 2400DPI Adjustable high-definition optical sensor. [Ergonomicdesign] Fluent hands common design, ergonomic shape, comfortable operating feeling. [BT3.0] multi-platform connection and compatibility [BT device connect] No USB receiver needed if your computer already have BT support BT enabled PC, laptop, MacBook.
