Shenzhen Coolseer Technology Co., Ltd. is a high-tech enterprise which focuses on the research, design, manufacturing, sales of IoT Home Automation products. The company mainly produces 'Voice Controlled' WiFi products such as Alexa & Google Home enabled WiFi smart devices and Z-wave devices. All WiFi devices work in one app "tuyasmart", no hub requirement, could work individual or trigger with each other. The Z-Wave Products are compatible with most Z-Wave Gateways, such as Fibaro, Zipato, Aeotec, Vera and so on. Our products can be with CE/ROHS/ETL/UL certificates according to different markets.