High Compatibility: With RJ-11 male connectors on both ends, this cable enables easy connectivity to our E42A smart controller, offering compatibility with a range of Vivosun LED grow lights, including VS1000, VS1500, VS2000, VS3000, VS4000, VSFD4500, and VSFD6500, and some other brands LED lights; Compatible with any RJ11 to RJ11 device, such as phones, modems and fax machines | Durable & Safe: Three-layer cable contains premium copper wire core, PP insulation jacket and a thick PVC jacket to ensure safety and durability; Precision-made connectors provide a tight and secure connection | Flat & Flexible Design: Encased in a soft, flexible and wear-resistant PVC cover, this cable is safeguarded against damage from everyday twists and bends; Its flat shape makes it easy to use and eliminates the hassle of entanglement | Stable Connection: Equipped with 4 gold-plated contact pins, this cable offers exceptional performance. Supports fast data transmission, delivers a strong signal, and maintains reliable, uninterrupted connections | 10Ft Long Cord: This 6P4C RJ11 telephone cable is 10ft long, offering more flexibility in arranging and moving your devices; Suitable for use in both large and confined spaces