Company Profile:Our company was established in 2013, located in Shenzhen, ChinaWe focus on well-known industrialized products Mits-ubishi, All-enBradley, Sie-mens, Om-ron, Prof-ace, De-lta, Yas-kawa, Pan-asonic, Sch-neider,such as PLC, touch screen, inverter, servo, motor, encoder and other productsWe sincerely welcome friends from all over the world to visit our company, or friends who are temporarily unable to visit our company due to the epidemic. We can communicate with you through video connection, and introduce various departments and products of our company to you through video. Build trust on the basis of long-term cooperation with you, thank you for your support!1.Q: How about the warranty ?A: provide 12 months warranty for all the goods from us , and you can Item specifics:Support app: NoFrequency: 433 MHzChannel: 1Package: YesModel number: LA-B391PWireless communication: Wire ControlUse: UniversalOrigin: DE(Origin)Certification: NONE