YourBell MP3 Door Chime, Programmable DoorBell. Made In The USA By BCS Ideas Corporation. (Walnut With Clear Coat) Plays MP3s stored on a MicroSD card. Mp3 files arranged in 26 Seasonal folders. Four Inputs. 1 & 2 support an incandescent bulb or LED. 3 & 4 support an LED. Each seasonal folder contains 4 Input folders. Drag & Drop 1 to 255 sound files per input. 10 Watt amplifier capable of driving 2 external 8 ohm speakers. 3.5" Coaxial internal speaker. Excellent sound quality. Included MicroSD card contains 9 seasons of sound files.