... Receiver distance can be 50meters 3. It can single control or group control 1. Frequency:433.92MHz 2. Receiver distance ... 3. It can single control or group controlA. The frequency is 433.92MHz.B.With setting code, record and dot-move ... function, it can be random set or change code, it can be applied to blind curtain.C.The ... can study and memory the recode, and can set or change the recode