Denon Heos HS2 review: A true Sonos competitor - Pocket-lint
Denon HEOS 1 review
Amazon.com: Denon HEOS 1 HS2 New Hi-Res Audio, Compact, Portable Wireless Bluetooth Speaker with Amazing Sound (Updated Version), Black, works with Alexa, 5.08 x 7.44 x 5.04 : Electronics