Korus V400L Serie Manual Del Usuario página 7

You can use a speaker individually or up to 4 speakers simultaneously to broadcast in multiple rooms or
even outdoors.
Source
Device
Note: You can see a list of compatible source devices at www.korussound.com/compatible-devices.
All manuals and user guides at all-guides.com
Combine
(into any
configuration
of 2-4)
or separate
speakers
anytime.
Source
Device
Korus V400L and V600L Series Wireless Speaker Owner's Manual 5