Zelotes 5500 DPI 7 Button LED Optical USB Wired Gaming Mouse Mice for Pro Gamer. 

This is a 5500 DPI 7 Button USB Wired Gaming Mouse, with multifunction, such as, high quality wire material: the red and black braided wire sync equipped the strong defense magnet ring which can strong anti-interference, Ultra-strong and durable, Gaming adjustment, Comfortable palm feeling, Relieve tired, etc. Plug and Play.

Features:

1. Intelligent connectivity, no need to code, plug and play

2. Buttons: 7 buttons with scroll wheel

3. Tracking systems: Optical

4. The Max DPI:5500DPI

5. Ultra-precise Scroll Wheel

6. Optical technology works on most surfaces

7. Ergonomically designed, long-term use without fatigue

8. Switch Life: 5 million cycle

9. Adjustable DPI Switch: 1000DPI / 1600DPI / 2400DPI / 3200DPI /5500DPI

Specifications:

1. Size: 130(L) x 105(W) x 45(H) mm

2. Package weight:5.5 oz

3. The length of the USB cable: 1.5m

Explanation For The Button:

1. DPI button to change LED colors

Press the DPI button to change the color. Then the LED flashes rapidly 7 times and then remains constant color. (Was not only a specific color) 

2. Fire button (on the top left)

This key is the same as double clicking the left button. (Two clicks for left button)

Compatible Systems:

Compatible with Windows 7, Windows 8, Windows 10, Windows XP, Vista, ME, 2000, Mac OS and other OS

Package included:

1 X 5500DPI Gaming Mouse.