Digital pianos with line in

 

— this input allows you to connect an analogue (line) audio signal from an external device — a music centre, an audio receiver, a mobile gadget, etc. Usually this audio signal is played through the digital piano's own acoustics, playing the role of accompaniment for the main part, but other ways of using it are possible — recording music on a USB flash drive, transmitting the audio signal to external devices with processing by the digital piano's built-in functions, etc. Most often, mini-Jack 3.5 mm and Jack 6.35 mm connectors are used as a line input. They are very popular in modern audio technology, and are also compatible through the simplest adapters.