Features: 1. High-quality ABS material, durable and wear-resistant, protects important internal components from damage and ensures a long service life. 2. Simple to use, easy to install and operate, user-friendly design suitable for home use, saving time and effort. 3. USB port allows the device to be used as an emergency charging compartment, enabling you to charge mobile phones or other devices anytime, anywhere. 4. Wide range of applications; compatible with electric sofas, massage chairs, and other lift chairs, allowing remote lifting and lowering to adjust to the desired angle. 5. High-quality wire, durable and cold-resistant, not easily broken, supports repeated use, safe and reliable. Specification: Item Type: Sofa Controller Material: ABS Working Current: 5A USB Charging: 5V Weight: Approx. 153g / 5.4oz Wire Specification: 22AWG 6 Core Wire / 17x0.16 / OD5.0mm Hole Distance: Approx. 9.3cm / 3.7in Package List: 1 x Controller Note: High current direct drive type: Uses micro switches and can be used without a control box or relay. Low current indirect drive type: Requires a control box and can be used with a relay inside the control box.