Amazon.com: yan AC Adapter for Denon HEOS 1 HS2 & HEOS 3 Wireless Bluetooth Speaker Power Supply : Electronics
Amazon.com: Denon AVR-S540BT Receiver, 5.2 channel, 4K Ultra HD Audio and Video, Home Theater System, built-in Bluetooth and USB port, Compatible with HEOS Link for Wireless Music Streaming : Everything Else
HEOS HomeCinema Bluetooth Connection
HEOS HEBTUSB USB Adapter | VIDEOPRO
Connecting the Bluetooth adapter HEOS 1, HEOS 1 Go Pack