With the wide proliferation of the internet of things, people now use smart home devices to facilitate everyday household activities and increase living comfort. However, smart home devices usually have to be manually activated by humans or require too many sensors. Also, modern AI agents can be controlled by voice commands but it is still very passive, just following the order from people. We believe that the next-generation of AI systems should be proactive, and should be able to understand the situation and context just like humans. From home security, healthcare to device control, Cochl offers a wide range of next-generation home services simply enabled by a microphone.