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The Logitech MX Master 4 features a Logitech Darkfield sensor, 8 buttons on top, two underneath, and two scroll wheels, with a DPI range of 200-8,000 and a weight of 151g. It connects via Bluetooth low energy (BLE) or USB-C and has a battery life of up to 70 days. The mouse includes a haptic thumb pad, a horizontal scroll wheel, and customizable gesture controls through Logitech's Options+ software. It is designed for productivity rather than gaming, with a focus on comfort and usability, although it is heavier and lacks a rubber outer surface compared to previous models. The price is set at .99 / £119.99.