The vertical mouse is designed according to ergonomics vertical, replacing the flat grip of the traditional mouse, get rid of the arm bone long time control mouse constraint state and reduce the discomfort brought by long time use of the mouse. Lightweight and portable, it is not only suitable for office, home, and travel, but also convenient to carry. 2400DPI photoelectric resolution and 10m transmission distance enable fast data transfer without delay or loss. USB interface, no driver required, plug and play, save time and worry. Wireless mouse is constructed of ABS material. The length of this product is 10.5cm, the width is 7.7cm and the height is 6.2cm. This mouse works with notebook, pc, laptop, computer, and more. Item Name: Mouse Material: ABS Button: 6 Buttons Resolution: 800DPI, 1600DPI, 2400DPI Maximum Operating Range: 10m Button Life: 5 Million Times Power Supply: 1 x AA Battery (Battery Not Included) Voltage/Current: 1.5V/8mA Features: Mute Clicking, Vertical, Wireless System Requirements: for Windows98/Me/2000/XP/Vista/Win7/Win8/win10/Win11, for Mac latest Three-level power saving mode: 1: Three seconds into the first sleep, light flashing continuously 2: 1 Minute or so to enter the secondary sleep, intermittent flashing lights 3: 8 Minutes or so, go to level 3 sleep, the light goes out How to use: 1: First open the back cover of the mouse, take out the USB receiver, and insert it into the USB port of the computer. 2: Then install the AA battery, turn on the power switch, and it can be used. 3: Note: This mouse needs 1 x AA battery. (AA battery not included) Size Details: Size: 10.5cm x 7.7cm x 6.2cm/4.14" x 3.03" x 2.44" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wireless Mouse 1 x USB Receiver 1 x English User Manual