1. Vertical streamlined design, combined with ergonomics, naturally fits the palm of the hand, reducing the discomfort of long-term use of the mouse.2. The forward and back buttons below the left thumb of the mouse speed up navigation and help you navigate easily.3.800-1200-1600 DPI Free adjustment, one button to meet your different needs.4. Applicable battery: 2 7th batteries (not included), 6 months long standby, avoid frequent battery replacement problems.5. The appearance of the mouse is made of matte material, and the grip is comfortable.6. The bottom anti-slip design makes it easier to use.Specification:1. Corresponding interface: USB interface.2. Transmission distance: 10m.3. Size: 123 x 65 x 82mm.4. Number of buttons: 5.Specification: Package Weight One Package Weight 0.13kgs / 0.28lb One Package Size 15cm * 8cm * 9cm / 5.91inch * 3.15inch * 3.54inch Qty per Carton 89 Carton Weight 13.00kgs / 28.66lb Carton Size 60cm * 40cm * 36cm / 23.62inch * 15.75inch * 14.17inch Loading Container 20GP: 308 cartons * 89 pcs = 27412 pcs40HQ: 716 cartons * 89 pcs = 63724 pcs