4. No programming required-just insert the battery (not including the battery), it can be perfectly matched with your device or receiver, the transmission distance is longer, and the performance is stable 1. The new remote control suitable for DG11L1-01 Home air conditioner Heating and cooling function remote control 2. and ergonomic design makes it very comfortable. It is the perfect choice when your old remote control is lost or damaged or you want a new one. 3. This is a special replacement remote control, but the function is 100% the same as the old one, covering all the functions of the old remote control. 5. Small and exquisite: easy to hold, small in size, suitable for models, easy to use