1:Please install a brand new battery on the newly purchased remote control and point it to the TV/audio/air conditioning/other signal receiving window for operation! (Remote control does not include battery) 2:No Need to set up,Just direct to use after putting a New battery.Please remove the battery when it is not in use for a long time.Easy to use, No programming or setting up required. 3:We maintain a high standard of excellence and strive for customer satisfaction. If you have any questions or concerns about your order, please feel free to contact us before leaving feedback and we will get back to you within 24 hours. Loakdsa Replacement Remote Control For DENON AVR-2807 RC-1046 AVR-787 AVR-587 AVR-687 AVR-1507BLA AVR-789 AVR-886 DHT-789BA RC-995 RC-1034 AVR-4806 AV Surroud Receiver