The Native American flute is a musical instrument and flute that is held in front of the player, has open finger holes, and has two chambers: one for collecting the breath of the player and a second chamber which creates sound. The player breathes into one end of the flute without the need for an embouchure. A block on the outside of the instrument directs the player's breath from the first chamber—called the slow air chamber—into the second chamber—called the sound chamber. The design of a sound hole at the proximal end of the sound chamber causes air from the player's breath to vibrate. This vibration causes a steady resonance of air pressure in the sound chamber that creates sound.

The flute is a member of a family of musical instruments in the woodwind group. Like all woodwinds, flutes are aerophones, producing sound with a vibrating column of air. Unlike woodwind instruments with reeds, a flute produces sound when the player's air flows across an opening. In the Hornbostel–Sachs classification system, flutes are edge-blown aerophones. A musician who plays the flute is called a flautist or flutist.