1. Wireless vertical mouse with comfortable grip and free wrist 2. 't let the wired connection bind the wireless or wireless mode, many troubles such as tangled mouse lines, messy and inconvenient to carry, etc. 3. The mute design does not want to disturb your mute switch button, low-decibel contact sound. 4. 4 gears DP | Freely adjustable through the DP button to achieve one-key switching Product Description: Model: H1 Vertical Mouse Type: wireless mouse Mouse size: rat (120mm) Wireless connection with computer Photoelectric resolution: 2400dpi () Number of keys: 6 (keys) Interface: USB Wireless transmission frequency: 2.4GHz Whether to support ergonomic support The resolution can be adjusted to four levels Operating distance: 10 (m) Working : photoelectric Four-way scroll wheel Featured Ergonomics Material: plastic colour: black Package Contents: 1 x wireless mouse 1 x Chinese and English instructions Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.