In summary, both ReSpeaker 6-Mic Circular Array Kit and 4-Mic Linear Array Kit for Raspberry Pi allow voice interfaces to be added into projects and enables makers and developers to innovate new industries with voice interface capable hardware. The ReSpeaker 6-Mic Circular Array Kit and 4-Mic Linear Array Kit for Raspberry Pi are ready for customization. To allow for quick customization, the core and peripherals have been separated. If a project required a custom mic array solution Seeed is able to quickly design and manufacture. Most importantly, users will find voice interaction applications are easier to develop and scale.