Comfortable operation, long-lasting battery life, a good partner for officeKeyboard part:• Ultra-long battery life: The battery can be used for up to 36 months, and no more frequent replacementBattery configuration: 2 AAA batteries, lightweight and durable, can be replaced at any timeMouse part:• Accurate tracking: Equipped with high-precision optical sensors, smooth and smooth for daily useAdapt to office rhythm: 1000 DPI resolution, stable operation• Simple three-button design: with mechanical scroll wheel and middle button click, simple and efficient• Long-lasting battery: A single AA battery supports up to 18 months of use• More worry-free: Energy-saving design, easy to cope with high-frequency work needsone-sizeABS