Can you easily switch these from surround mode to stand alone mode?

On your cellphone you set up the speakers using the musiccast app. Once they are linked to your internet modem/AP you can quickly switch from linked mode [stereo] to individual all within thr phone app.

Will the musiccast 20 speakers work with the rx-v683 receiver?

heres the link to answer your question , https://usa.yamaha.com/products/contents/audio_visual/musiccast/musiccast-compatiblity.html ... the rx-v 683 will work but not as surround speaker

Is this just one speaker or two? Looking for wireless rear speakers for surround sound setup.

This is for one speaker. If you’re looking for a wireless surround setup, make sure your receiver supports it. The current 2018 Yamaha receivers are the only ones that support MusicCast Surround. I bought my receiver late last year (the RX-A1060) and it only supports wireless sync, not wireless surround.

Would these work as wireless rear speakers with a Yamaha AV receiver for a surround system?

You mean rear, as in 7.1? No. You can use them as surround speakers in a 5.1 system, which is how I am using them.

Audio Musiccast 20 Wireless Speaker Alexa Voice Control Black

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R16825

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎵 Elevate your space with sound that speaks your style!

COMPACT YET POWERFUL - Fits any space with a stylish design and delivers rich stereo sound with 4W output.
VERSATILE CONNECTIVITY - Stream via Wi-Fi, Bluetooth 4.2, AirPlay, or Spotify Connect for ultimate flexibility.
EXPAND YOUR HOME THEATER - Pair two speakers or add to a 5.1 surround system for immersive wireless audio.
VOICE ACTIVATED CONVENIENCE - Hands-free Alexa integration lets you command your music with just your voice.
SEAMLESS MULTI ROOM STREAMING - Connect and control music across multiple rooms effortlessly with the MusicCast app.

The Yamaha MusicCast 20 WX-021BL is a versatile wireless speaker designed for modern living. It supports multiple streaming protocols including Wi-Fi, Bluetooth 4.2, AirPlay, and Spotify Connect, and integrates seamlessly with Alexa voice control. Its compact, wall-mountable design fits any room aesthetic, while the MusicCast app enables multi-room audio and stereo pairing. Ideal for both standalone use and as part of a 5.1 surround sound system, it delivers rich, dynamic sound with a 4W output and up to 32 feet wireless range.

Specifications

ASIN	B07CK93ZZF
Additional Features	Bluetooth, Wireless
Age Range Description	Adult
Antenna Location	For Computers, For Home Theater Systems, For Smartphones or Tablets, For Stereo Sound
Audio Driver Size	20.07 Centimeters
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Battery Average Life	10 hours
Best Sellers Rank	#130,241 in Electronics ( See Top 100 in Electronics ) #2,692 in Portable Bluetooth Speakers
Bluetooth Range	32 Feet
Brand	YAMAHA
Built-In Media	2 units
Color	Black
Compatible Devices	Laptop, Smartphone, Tablet
Connectivity Protocol	Bluetooth
Connectivity Technology	Bluetooth, Wi-Fi
Control Method	Voice
Controller Type	Amazon Alexa
Customer Package Type	Standard Packaging
Customer Reviews	4.1 4.1 out of 5 stars (344)
Enclosure Material	Plastic Metal
Frequency Response	40 Hz
Global Trade Identification Number	00027108957302
Is Waterproof	False
Item Dimensions D x W x H	13.2D x 15W x 20.1H centimeters
Item Type Name	• Yamaha MusicCast 20 Wireless speaker for Streaming Music. Black. Works with Alexa.
Item Weight	2.18 kg
MP3 player	No
Manufacturer	YAMAHA
Maximum Range	32 Feet
Model Name	WX-021BL
Model Number	WX-021BL
Mounting Type	Wall Mount
Number of Audio Channels	5.1
Number of Items	1
Number of Power Levels	1
Power Source	Corded Electric
Series Number	21
Speaker Maximum Output Power	4 Watts
Speaker Size	20.07 Centimeters
Speaker Type	Multi Room
Specific Uses For Product	Music, Home Theater, Wireless Surround
Subwoofer Connectivity Technology	Wireless
Tweeter Diameter	1 Inches
UPC	027108957302
Unit Count	1.00 Count
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth, Wi-Fi
Woofer Diameter	8.89 Centimeters

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