Aftermarket 2.4GHZ Snap-in Transceiver Fold Wireless Mouse Cordless Mice USB Folding Mouse Black 2.4GHz USB Wireless Cordless Optical Mouse Mice For PC Laptop (.Black Foldable) Max 1200 cpi resolution, Product dimensions (unfolded): 4.25" x 2.25" x 1.5" Up to 10 meters Wireless Operation Distance Micro-transceiver snaps into the bottom of the mouse Curve for comfort, flatten and to pack. A perfect fit for your hand and your mobile lifestyle.