Voice
Sound.
Your voice
Sound. Sound waves are vibrations that travel through a medium such as air and can be heard by our ears.
Your voice
The instrument you can't see or touch but can hear when played is the human voice. It produces sound through vocal cords and can create a wide range of tones and melodies. While you can't physically grasp the voice, it is a powerful medium for expression and communication.
They can
there are 5 sight hear touch taste smell
your voice
they have smell , touch ,taste,see,hear
Hardware
Answer : Emotion
See hear touch