Home-Assistant.io - Home Assistant is an open-source home automation platform running on Python 3.
BOSEbuild Speaker Cube - Build-it-yourself Bluetooth speaker for curious kids
ioBroker - flexible and modular application for the IoT and Smarthome
SOUNDBOKS - The loudest battery-powered speaker on the market.
openHAB - "empowering the smart home" - vendor and technology agnostic open source home automation
Sonos In-Wall Speaker - A speaker made by Sonos and Sonance that sits in your wall