This wireless mouse offers excellent performance and functionality in an elegant sleek design. The main feature of multi-mode wireless connection ? via Rapoo?s reliable 2.4 GHz wireless transmission, Bluetooth 3.0 or Bluetooth 4.0. (Smart) ? allows you to connect simultaneously to up to 3 devices and change (pair automatically) among them. To suit different preferences, MT350 features a high-performance sensor, fully adjustable from 600 to 1600 DPI. To top it all off, it also offers up to 12 months battery life and a power button. Multi-mode wireless connection: connect via Bluetooth 3.0, 4.0 and 2.4 GHzUp to 10 m range & 360° coverageConnect simultaneously to up to 3 devicesInstantly switch among 3 connected devices in one click (Automatic pairing)Fully adjustable 1600 DPI sensorBox ContainsMulti-mode Wireless mouse, Nano USB receiver, 2 AA alkaline batteries (installed), Quick Start Guide