The FL-403 Heated Back Massager combines thermal therapy with deep-tissue mechanical massage. Built in FENLI’s ISO9001-certified 4,000-square-meter facility in Zhejiang, China, each unit features pure-copper high-torque motor assemblies and PTC ceramic heating components designed for rapid thermal delivery. The massager undergoes 100% full-line quality control, including continuous thermal checks, electrical safety verification, and load endurance tests. Encased in durable PU leather and flame-retardant 3D mesh fabric, the FL-403 provides customizable speed and heat settings. Holding CE, RoHS, and FCC certifications, FENLI supports international OEM/ODM clients with custom color options, private label printing, and dependable global shipping logistics.