SMLIGHT SLZB-MR4U are a network device that serves as a central bridge for managing communication in a Zigbee network. SLZB-MR4U is a combination of SLZB-06P10 and SLZB-06MG26U, containing two types of Zigbee SoCs: CC2674P10 and EFR32MG26, SLZB-MR4U can also serve a Matter-over-Thread network. The devices are designed specifically for Zigbee2MQTT and ZHA Home Assistant ensuring smooth work out-of-the-box. These devices have the smallest size and reachest packing.