Air conditioning (outdoor unit): Listen & Download Air conditioning (outdoor unit) .mp3 Error! Change your browser, please! ⇓ Download A vacuum cleaner ⚠ Email message sound ⚠ Windows notification sound ⚠ Exhaust fan ⚠ Air conditioning (outdoor unit) ⚠ Sewing machine ⚠ Portable fan ⚠ Electronic melody for SMS alerts ⚠ Popcorn machine ⚠ Old tv on, off ⚠ Electric wheelchair ⚠ Cool sound for notification ⚠ ★★★★★