The Ralemo Air 1 impresses with its unique, modern, elegant, and simultaneously robust design, made from an aluminum alloy. Its compact shape fits comfortably in the hand, and the click noise-reducing "Silent-Click" feature provides freedom and tranquility wherever you work. This wireless mouse transmits using Rapoo's latest and most powerful wireless multi-mode technology—via reliable 2.4 GHz radio transmission, Bluetooth 3.0, or Bluetooth 5.0—allowing you to connect to up to 3 devices simultaneously and switch between them (automatic pairing). With an adjustable sensor of 1,600 DPI, you can enjoy complete control: the adjustable DPI sensor ensures that accuracy is no longer left to chance. It can be set between 600 and 1,600 DPI, thus tailored to your needs. Eco-friendly battery, no more battery changes: thanks to the built-in, eco-friendly lithium battery, a full charge can last up to 25 days. No battery changes are necessary anymore.