Welcome to the store! 1、1. Touchpad, supports horizontal and vertical scrolling, left and right buttons. 2、2. Comfortable fit for the natural curve of the hand. 3、3. Bluetooth 4.0 connection, lower power consumption, more stable performance and smoother operation. 4、4. Bluetooth folding with touch. 5、5. Ultra-thin. Model: ZTW-21 Foldable Touch Mouse Connection method: Bluetooth 4.0 Wireless frequency: 2.4GHz frequency range Wireless range: about 10 meters Size: 131.2 * 55 * 14.5mm / 5.16 * 2.16 * 0.57inch (approx.) Weight: 82.5g with battery Battery: 2 AAA alkaline batteries Connection to the computer: Bluetooth Applicable models: Laptops Photoelectric resolution: 1600 (dpi) Number of buttons: 2 (buttons) Interface: Bluetooth Adjustable resolution: four gears Direction wheel: touch wheel 1 * Foldable Bluetooth Mouse Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!