Sine wave (975Hz): Listen & Download Sine wave (975Hz) .mp3 Error! Change your browser, please! ⇓ Download Pounding in the mud ⚠ Soldiers pass by ⚠ Bone breaking ⚠ Close, The metal gates of the grill open ⚠ Board falls ⚠ Tablecloth ⚠ Sounds R2D2 ⚠ Bullet hit in metal ⚠ Ax hit the trash ⚠ The receptionist trolley passes by ⚠ The robot moves, makes sounds ⚠ Small crowd, organ plays, Church ⚠ ★★★★★