I am using chromecast audio from last 2 months. I would like to discuss its pros :
( 1) Stream tunes from device to speaker.
It supports all OS such as android, ios, window, iphone, chromebook. So you can play music from any device
( 2) High Quality sound
Sound is of very high qualitu and give awesome music listening experience.
( 3) No need of pairing button, just click cast butyon and its done.
( 4) Listen to podcasts, radiostations, google music at one device. Really amazing product.
( 5) Make your speaker smarter
( 6) Key features
a. Stlish look with 24bit/96KHz high quality sound.
b. Wifi wireless support
c. 5 Volt 1 Ampere power supply
d. 3.5 mm jack and micro usb support.
e. support window, mac, ios and android OS.
Chromecast works on wifi setup with the devices. very good device to explore music in speakers.
( 7) Look and feel
Awsome look. I own black colored chromcast audio device. Feels very nice.
( 8) Value for money
Guaranteed value for your money. Very useful.