If the first time you connect, it lights up blue. Then you need to turn off Steam, and then reconnect. Then you can turn steam back on. This is due to the fact that steam is trying to set your gamepad to a profile.
Logitech M510 Blue Wireless Mouse with USB 🖱️ Unifying Receiver - Comfortable Shape, Back/Forward Buttons and Side-to-Side Scrolling
199 Review
Wireless compact mouse Xiaomi Mi Dual Mode Wireless Mouse Silent Edition, white
174 Review
Wireless Bluetooth Graphite 🖱️ iPad Mouse - Logitech Pebble i345
184 Review
Renewed Logitech MX Master 🐭 3 Advanced Wireless Mouse: Exceptional Performance Guaranteed
233 Review