Original Receiver replacement Wireless Dongle for Logitech H600 Headset Logitech Tie New – Retail Packed with Instructions: Amazon.de: Computer & Accessories
XBERSTAR USB Receiver Bluetooth adapter For Logitech Wireless Headset H600 H800 UE3500
Best Buy: Logitech H600 RF Wireless On-Ear Headset Black 981-000341
Logitech 993-000439-01 Unifying USB Receiver for Mouse and Keyboard Mice - Newegg.com