LZ Technology is a China-based IT and advertising company that operates a network of smart access control monitors installed in residential communities. These monitors serve dual purposes: they function as IoT-enabled entry systems (using facial recognition or smartphones) and as advertising screens that reach residents every time they enter or exit a building. As of December 31, 2025, LZ Technology had roughly 70,700 monitors across more than 4,000 residential communities in approximately 120 cities, covering over 2.7 million households. The company generates revenue through three verticals: Out-of-Home Advertising (ads displayed on its access control screens and partner displays), Lifestyle Services (connecting local merchants with consumers through group deals and coupons on WeChat, Douyin, and RedNote, with a more recent B2B product sales component), and Smart Community (selling and installing access control hardware and SaaS software). LZ Technology does not manufacture its own hardware — it procures monitors from a related-party supplier controlled by its own chairman, and its SaaS software is also sourced from a related party. Advertising on the screens is technically operated through a partnership with Wuxing News Media, a state-owned enterprise that holds the required broadcasting license. The company's growth strategy centers on expanding its screen network via city partners, deepening merchant relationships in Lifestyle Services, and replicating its model internationally, starting with the MENA region.