· Works For Insignia NS-43F301NA22 43-inch, NS-50F301NA22 50-inch F30 Series LED 4K UHD Smart TV· No programming is required. Just install new alkaline batteries and it is ready for use.· Power Supply: 2X 1.5V AAA Alkaline Battery· ***Battery and User Manual Not Included· NS-RC1US-21 CT-95018