According to the Verge, Cast for audio is based on the same technology Google uses for its Chromecast, just without the video capabilities. A number of speaker manufacturers have signed up to support Cast, including Sony, LG, and Denon and any audio app that supports the Chromecast can wirelessly send music to a compatible speaker. Cast can be used by iOS and Android devices.

LG's Music Flow line of wireless speakers is the first Google Cast speakers available for purchase. The Music Flow speakers are a large one H7, a medium one H5, a small one H3 and a couple of soundbar options. Pricing ranges from USD 179 for the 30-watt H3 on up to USD 999 for the top of the line soundbar. LG also has a Music Flow app for both iOS and Android.

Recently, Apple announced it is recalling Beats Pill XL wireless speakers because of danger batteries might get so hot they ignite in flames.

Apple received eight reports of the Beats Pill XL speakers overheating, one incident involved someone's finger getting burned and another involved damage to a desk, according to a recall advisory posted by the US Consumer Product Safety Commission.

Beats by Dre introduced Beats Pill XL portable speakers in late 2013, about seven months before the company was bought by Apple in a deal valued at USD 3 billion.