The UGREEN 25753 Ergonomic Wireless Mouse is engineered for users who spend extended periods working on a computer, combining advanced technology with an ergonomic design for superior comfort. Its contoured grip and lightweight build are designed to reduce arm strain, making it ideal for professionals, students, and creative users alike. This mouse offers unparalleled connectivity flexibility through its dual-mode capability. It supports both Bluetooth 5.0 and a stable 2.4GHz connection, allowing users to connect to multiple devices simultaneously. Some sources note the ability to connect to two devices at once and switch instantly, while others highlight connecting to three computers at once, each with independent memory for preferred settings. Precision is paramount, and the UGREEN 25753 delivers up to 4000 DPI sensitivity. This high-precision blue light sensor allows for smooth tracking, even on 4K/8K HD displays, and features five adjustable DPI levels (800/1200/1600/2000/4000) to match any usage scenario or screen resolution. Beyond performance, the design prioritizes a quiet workspace. Equipped with ultra-quiet clicks (rated at ≤40dB), the mouse minimizes noise, making it perfect for shared office environments, libraries, or classrooms. Functionality is enhanced by six buttons, including side buttons for forward and backward navigation, increasing overall handling efficiency. Compatibility is exceptionally broad, supporting Windows (7/8.1/10/11), macOS, Linux, Chrome OS, iPadOS, Android, and iOS. The plug-and-play convenience means no drivers are required. Furthermore, the mouse boasts a long-lasting battery life, with one source citing up to 300 days on a single AA battery, supported by an intelligent 3-stage auto sleep mode.