1.The silky touch of the upper lid and the smooth sliding of the rubber roller are gentle and delicate, accurate and smooth.
2.The soft silicone ring effectively enhances the comfort of holding, skin-friendly and more wear-resistant.
3.The 1300DPI high-precision tracking engine has accurate positioning. After testing, it can be used on leather, cloth, paper, resin and other surfaces, and it can be used in various occasions.
Specifications:
Brand:Rapoo
Model:M650
Product size :100.1*63.7*26.5mm
Product weight : about 60g (without battery) 
Ergonomic working mode:Left and right hand symmetrical
Working method: optical engine
Transmission mode:Bluetooth 5.0, 3.0 and wireless 2.4G
Scroll wheel direction:Bidirectional 
Resolution: 1300DPI 
Button:left button, middle button, right button,Bluetooth button
Maximum tracking speed : 30inch/s
Power supply:1 AA battery (not included)
Receiver parameters:
Product size:18*15*7mm
Product weight:2g
Receiver storage compartment:inside the mouse