ZH Currtain Curtain Motor ZM79: Smart Splicing, Easy Upgrade. ZM79 Spliced Track Package features an innovative DIY splicing track design, with adjustable track lengths ranging from 2.2 meters to 8.2 meters, offering flexible adaptation to various window sizes. Whether for home use, commercial applications, or large-scale projects, it provides a convenient and efficient smart curtain solution. ZM79 Spliced Track Package Unique Advantages: Control: RF433, Wi-Fi, Zigbee, Bluetooth Mesh; No need to customize, splicing at will, easy to assemble smart curtains; Standard collocation; Firmware upgrade is convenient; Dimensions: 2.2m⸺8.2m; No need for cutting or customization; Standardized pairing, you can DIY to splice the track at home; Easy integration of intelligent modules; Not need cutting the track before install; Easy to carry, small in size.