This unusual model was mechanically very similar to the WM-2, the main difference being that the outer casework was made from pressed metal rather than moulded plastic. As the metal could be made thinner than plastic of similar strength, the WM-5 was marginally smaller than the WM-2. The exposed volume control of the WM-2 would have been difficult to make without the versatility of plastic moulding, so the control was made internal instead. A small viewing window allowed the setting to verified. Text copyright © Walkman Central. Unauthorised reproduction prohibited.