... 4 channel relays 2. 100 working distance 3. learning code 4. 4 control mode 5. singnal can pass through doors walls floor Feature:Wireless ... ) from any place within a reliable distance; the wireless signal can pass through walls, floors and doors.The ... 433MHzReceiver:Model No.: S4C-DC09 / S4C-DC12 / S4C-DC24Channel: 4 CHControl Modes: Toggle, Momentary, Latched, Toggle + MomentaryCoding Type: Fixed ...