I have a Logitech keyboard, K260 and a mouse M210. I lost the wireless receiver and bought a new one. Targus bluetooth
Logitech wireless mouse M210, Computers & Tech, Parts & Accessories, Mouse & Mousepads on Carousell
New Wireless Dongle Receiver Usb Adapter For Logitech Mk270/mk260/mk220/mk345/mk240/m275/m210/m212/m150 Mouse Drop Shipping - Pc Hardware Cables & Adapters - AliExpress