Feature: 1. Mouse movement, smooth, no burrs, professional optical positioning technology, more precise positioning. 2. Unique intelligent circuit management design, making the mouse more power‑saving. 3. The mouse refresh rate reaches 125MHz, and it is used smoothly without delay. 4. High‑performance intelligent wireless technology, using frequency hopping transmission, strong anti‑interference ability. 5. The appearance design is stylish, ergonomic design, and comfortable to touch. Specification: Item Type: Wireless Mouse Material: ABS Connection with Computer: BT BT Version: BT5.0 BT Name: BT5.0 Mouse Signal Transmission Distance: Approx. 10m/ 10.9yd Optical Resolution: 800-1200-1600dpi Number of Keys: 6 (keys) Working Method: Photoelectric Wheel Direction: Four-Way Wheel Battery Specification: 2 x AAA Battery (Without) . Package List: 1 x Wireless Mouse Note: Ship without battery.