Headphones are very useful in busy households because they enable the player to block out the rest of the world and concentrate on what is being played. SPACIAL HEADPHONES SOUND technology greatly enhances the depth and realism of the piano sound. CA series and Novus pianos include a dedicated premium headphone amplifier for the ultimate headphone musical experience. 1/8″ and 1/4″ jacks are included, so you can use your favorite headset or earbuds. Both jacks can be used at the same time, so a parent can listen to a child practice or duet partners can play silently.