The Brand New Honeywell 5802WXT Single-Button Wireless Transmitter Pendant is a white, sealed device that is compatible with Honeywell products. It serves as a transmitter for home security systems and can be integrated with Wi-Fi and Z-Wave smart home protocols. With its single-button design and wireless capability, this pendant offers convenient and efficient control for your home security system. Perfect for those looking for a reliable and high-quality transmitter from a trusted brand like Honeywell.