UGREEN Wireless Ergonomic Mouse, Rechargeable Bluetooth &USB Computer Mouse

57° Ergonomic Design: The ergonomic mouse's 57° vertical grip promotes a natural forearm posture, reducing wrist strain and discomfort for improved comfort and productivity compared to a standard mouse(It does not contain batteries, and it is suitable for right hands with a length of 17 cm or more. Not suitable for left-handed people) Fast-charge and Lasts for 61 Days: The wireless mouse is equipped with fast charging technology, which can be fully charged within 2 hours, and it has a battery life of 61 days(2H/Day), eliminating the hassle of frequent charging. Whether for work, study, entertainment, or on business trip, it's your efficient, reliable, and environmentally friendly long-lasting partner Two Connection Modes: The bluetooth and 2.4GHz mouse supports bluetooth and 2.4GHz USB connection. You can easily switch modes and connect the mouse to up to 2 devices at the same time. For example, the USB direct connection mode can connect to a desktop computer, while the Bluetooth mode can connect to a personal computer or tablet 5-level DPI Precise Tracking: The Bluetooth mouse offers precise tracking on any surface with optical tracking technology, including glass, with 5 adjustable DPI levels (4000/3200/2000/1600/1000), making it ideal for detailed tasks like CAD drafting Slient Clicks: The wireless mouse with quiet clicks, offering the same satisfying feel but with 90% less click noise, eliminating noise and distractions for you and others around you 6 Buttons: Added next/previous buttons provide convenience when webpage browsing; the superior choice for work form home, office professionals and people who work at length at the computer Note: Some users may experience some discomfort when first using our ergonomic mouse. This is normal and requires familiarity with the new grip and position. We recommend allowing 2-4 weeks for adjustment. Many users find that once acclimated, the comfort and support significantly improve their overall experience