YAMAHA MusicCast musiccast20 Black, Set of 2

Yamaha MusicCast 20 (WX-021) Black
Comes as a set of 2.
Includes only the main unit and power cable.
The units have minor scuffs and small stains, but no noticeable major scratches.
They are confirmed to be working and can play music over the network, such as listening to songs from a server.

They can also be used as rear speakers for Yamaha AV receivers. I have not personally tested this function.
The compatible AV receivers, based on my research, are as follows:
Compatible AV Receivers:
CX-A5200, RX-A8A, RX-AGA, RX-A4A, RX-A2A, RX-
A3080, RX-A2080, RX-A1080, RX-A880, RX-A780, RX-
V585, RX-V6A, RX-V485, RX-V4A, RX-S602
Please understand that these are used items before purchasing.

Shipping will be on Sundays. Purchases made on a Sunday will be shipped the following Sunday.

Please use the Request a Discount feature for price negotiations.
I will not respond to discount requests made in the comments.

From Kakaku.com:

Product Information:
A wireless speaker that allows you to enjoy music anywhere in your home. Features a 2-way speaker and 2 passive radiators for rich sound.
Built-in Wi-Fi network function allows connection to smartphones and other devices for music playback. In environments without Wi-Fi, it also supports Bluetooth audio and AirPlay for iOS devices.
Compatible with MusicCast for building a full-fledged home audio network. Voice control is also possible using the voice service Alexa.
Output Power: 40W
Bluetooth Ver. 4.2/Class 2
Wireless Playback: AirPlay 2, Wi-Fi
Frequency Response: 60Hz - 20KHz
Supported Codecs: SBC, AAC
Playback Channels: Monaural
Speaker: 2-Way
Speaker System: Passive Radiator
Supported File Formats:
WAV/AIFF/FLAC/ALAC/MP3/WMA/MPEG4-AAC
Streaming Services (Music):
Amazon Music/Deezer HiFi/Spotify/radiko
Dimensions & Weight:
Width x Height x Depth:
150 x 186 x 130 mm
Weight: 2200g
Color: Black