Features: 5 adjustable DPI levels (800/1200/1600/2400/4800) and 8 buttons: left and right, scroll wheel, forward and backward, DPI+, DPI-, fast flame button (default three quick click left mouse button ). Power saving mode and shutdown. If the mouse stops working for 8 minutes, it will change to power saving mode, press any button to restart. If you turn off the computer or remove the nano receiver from the USB port, press any button or move the mouse to enter the energy-saving mode. 2.4G wireless transmission technology: enjoy faster and stable data transmission. [Small receiver] Insert the small wireless receiver into the slot next to the battery slot, and it can be easily stored when not in use.specification: Polling rate: 125/250/500HZ Number of keys: 8 buttons Power:1*AA Battery (not included in the scope of supply)note: 1. The back and forward buttons are not applicable to Mac OS, because the system itself is closed and not open to the public, but other functions can be used normally. 2. No software is required.Commodity list: 1 x wireless mouse (without battery) 1 x USB receiver 1 x User ManualComfort & Precision At Your Fingertips – The Redragon wireless gaming mouse is an essential computer accessory for die-hard gamers! You will be amazed by the unmatched comfort, lethal accuracy and killer precision of our durable, desktop and laptop pro gaming mouse! You can enjoy a wonderful clicking experience without disturbing others. It is an optimal choice in the office, library, dormitory or wherever you like.Advanced 2.4Ghz Wireless Technology – Discover the most responsive and comfortable Redragon Pro Wireless Gaming Mouse. The 2.4Ghz wireless enables working distance up to 10 meters (or approx. 30ft) with a little-to-no delay or signal drops. No any driver is required, just plug and play.Long Life Span & Power Saving – It has passed 10 million times keystroke test to guarantee extra durability. This wireless mouse will be in sleep mode in 8 minutes of inactivity and waken up quickly by pressing any button. Powered by 1*AA battery (not included) and easy to be replaced.