It's a really good mouse. Ultra-thin and soft to the touch. The mouse came with a battery already installed and isolated by a plastic plug. An on/off switch is included. The diagrams and instructions are very easy to follow.
🖱️ Logitech MX Master Wireless Mouse: High-Precision Sensor, Easy-Switch up to 3 devices, Meteorite Black
322 Review
Logitech M510 Blue Wireless Mouse with USB 🖱️ Unifying Receiver - Comfortable Shape, Back/Forward Buttons and Side-to-Side Scrolling
199 Review
A4Tech XL-747H Gaming Mouse, Blue Spider
190 Review
Renewed Logitech K800 Wireless 💡 Illuminated Keyboard: Brighter, Better, and More Convenient
204 Review