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" function 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. Environmentally 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.