Wireless connection: connect via Bluetooth 4.0, 5.0 and 2.4 GHz Up to 10 m range & 360 ̊ coverage Connect simultaneously to multiple devices Instantly switch among connected devices in one click (Automatic pairing) Comfortable elegant design Fully adjustable 4.000 DPI high-resolution optical sensor Programmable buttons including a side scroll-wheel Eco-friendly rechargeable battery