ERGONOMIC DESIGN - Vertical mouse that promotes a natural handshake like position while using for more comfort during prolonged use. 3-IN-ONE CONNECTIVITY - Portable mouse without any cable-hassle. Equipped with three wireless connection modes - wireless 2.4 G via USB-A and USB-C, and Bluetooth. RECHARGEABLE - Built-in, high-quality rechargeable Li-Po 300mAh battery that last up to 15 days (based on 4-hour use per day after a single full charge). Built in sleep mode. FOR PRODUCTIVITY - Silent-click buttons for maximum productivity. High-quality optical sensor, switch between DPI levels 1000 / 1600 / 2400 to adjust mouse responsiveness depending on your activities. Equipped with Advanced Encryption Standard (AES) 128-Bit Encryption. COMPATIBILITY - Windows OS, Linux Ubuntu 16.04, Chromebook, iPadOS, Android, Amazon Fire Tablet; Partial compatibility with macOS (forward and backwards buttons are not available for macOS)