In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The Conn 24M-HF features newly-engineered key mechanisms on a body which has provided the classic American sound since the early twentieth century. With a range to high F#, the 24M features a seamless neck and durable nickel-plated keys which carry a lifetime guarantee. Includes a sturdy hardshell case with carrying strap, an original Conn mouthpiece and comfortable shoulder strap.