Precise Optical Performance: Equipped with a 3-level adjustable DPI switch (800, 1200, 1600), this Bluetooth mouse uses a high-performance optical sensor for accurate tracking, suitable for gaming and office tasks. Bluetooth 4.0 Technology and Rechargeable Battery: Featuring Bluetooth 4.0 connectivity and a built-in 450 mAh lithium-polymer rechargeable battery, this mouse offers extended usage time after approximately 1.5 hours of charging. It also includes auto-sleep mode to conserve power when idle. Universal Compatibility: Compatible with a wide range of operating systems, including iPad (iOS 13 or later), Windows, macOS, Linux, and Android — ideal for use with PCs, laptops, tablets, and more. Ergonomic and Ultra-Thin Design: Contoured shape and ultra-thin profile ensure comfort during extended use. Smooth surface finish and rubberized scroll wheel provide secure, slip-resistant grip. Easy Setup with iPad: To use with an iPad, update to iOS 13 or later, enable “AssistiveTouch” in Accessibility settings. The device will be automatically detected, and pairing can be completed using the passcode “0000”.