Logitech MX Master Wireless Mouse, Bluetooth or 2.4 GHz with USB Unifying Mini-Receiver, 1000 DPI Any Surface Laser Tracking, 5-Buttons, Amazon version, PC / Mac / Laptop - Graphite Black : Amazon.co.uk:
Original Replacement USB Receiver for Logitech MX Air Cordless Air Mouse (M-RBP123, M-RMP123) : Amazon.in: Computers & Accessories
Logitech MX Air Mouse Review
Logitech Introduces New MX Air Mouse | TechPowerUp