As one of its daily deals, Musician's Friend offers the Gear One Isolation Headphones in Black, model no. G100DX, for $49.99. Add them to your cart to drop them to $19.99. With free shipping, that's the lowest total price we could find by $23. Features include a 40mm Neodymium driver, 20Hz to 20kHz frequency response, leatherette ear pads, and self-adjusting headband. Deal ends today.