(1) Whoever practices fitting or selling of hearing aids under this subchapter shall deliver to each person supplied with a hearing aid a receipt. The receipt shall contain the licensee's signature and show the licensee's business address and license number, together with specifications as to the make and model of the hearing aid furnished and full terms of sale clearly stated. If a hearing aid which is not new is sold, the receipt and the container thereof must be clearly marked as "used" or "reconditioned" whichever is applicable.
(2) The following shall be set out in not less than 8-point type:
(a) The terms of the guarantee, if there is any given; and
(b) A statement that the purchaser has been advised at the outset of the purchaser's relationship with the hearing instrument specialist that any examination or representation made by a hearing instrument specialist in connection with the fitting and selling of this hearing aid is not an examination, diagnosis or prescription by a person licensed to practice medicine in this state and therefore must not be regarded as medical opinion or advice.