1)The hand controller can conect to 1or 2 linear actuator motor2)Cheap price with elegant and small shape2)Certification: CE/EMC+LVD, ROHSWuxi JDR Automation Equipment Co., Ltd (Original name: Wuxi Feiya Electronical Equipment Co., Ltd), established in 2004, is a professional manufacturer and trading unit integrating the research, production and marketing of DC linear actuator and it's relevant spare parts, It's highly appreciate of your enquiry or question about our actuator motors, hand controller, and converter, we will reply within 18 hours, thank you!