Safer life starts with our products! Product Description 1) Can learn Fixed and Rolling code 433,92Mhz remote controls separately and simultaneously !!! 2) 2 channel receiver provides you with an option to control and use 2 gate automations or alarm systems simultaneously 3) This receiver can be used in cases, when your original receiver's memory is full and can't accept any additional remote controls. By connecting this receiver to your system, you can increase the ammount of remotes up to 400. So 400 remote controls can be added to your existing system. 4) This receiver can be used in case,if you need to add moreadditional remote controls. The original remote controlscost isquite expensive. By connecting this receiver to your system you will save a lot of money, especially if you require 10-20or more additional remotes. 5) If you have few differentremote controls from different systems, you can replace them (substitute) with 1 4-channel remote!!! It's very handy to use 1 remote instead of 3 or 4. 6) It's very easy to connect it to yourcontrol board. All you need is to connect 4 wires between receiver and control panel. If you will need any technical support - i'm always at your service! Include 1 x Receiver 1 x English Manual Shipping Notice: Customs Tax : Customs Tax should be paid by buyer, Seller can't support any Customs Tax. Remote Area : For Remote area, DHL/Fedex/UPS/TNT will charge extra " Remote Area Fee". P lease understanding it. Return: Returns are accepted . In case of a refund all items must be returned undamaged, in a re-sellable condition. For DOA (Defective On Arrival) items, which will be replaced or refunded, please inform us within 24 hours of arrival, please also keep all of the components and original packaging as further checking might be required. Faulty items must be returned for repair or exchange. Buyer is responsible for all shipping costs of returning an item for a refund or exchange . Contact us: 1.If you have any question, Please contact us.All message will be answered within 24 hours from Monday to Saturday. 2. Please contact us before leaving any negative or neutral feedback or opening disputes, we will work with you to solve any problems.