Hours of use of the mouse often leads to an unnatural posture and often provokes pain. The ergonomic computer mouse from LogiLink helps you to a gentler position and relieves discomfort of the hand and wrist. The dual connection mode allows you to switch between a 2.4 GHz wireless connection and Bluetooth 4.2. After 10 minutes of inactivity, the mouse automatically switches to sleep mode, saving power. In addition, this mouse also has an on/off switch.2.4 GHz radio technology Ergonomic design is adapted to the natural shape of the hand and wrist Dual connection mode: 2.4GHz wireless and Bluetooth 4.2 Automatically switches to sleep mode after 10 minutes of inactivity, saving energy Resolution: 1200 dpi Range: Up to 10m 1x AA battery Vertical scroll wheel and on/off switch Color: Black General product data: Weight: 0.075 kg Height: 3.5 cm Width: 6.2 cm Length: 11.5 cm