Anico for TDH39 and DD45 Audiometer Earphone Air Transducers Headsets Noise Reducing (Black)

- This pair of earphones has strong compatibility and can be easily used in any setting. - Easy to use：It's intelligently and ergonomically designed，suitable for all imported , providing high-sensitivity. - Robust design and easy to use, adjustable soft padded headband and comfortable ear cushions. - Good ambient noise isolation,unique instrument advances pure tone air conduction threshold for hearing. - Service Guarantee: We offer 30-day money-back service for any quality issues. Any dissatisfaction with the purchase within that period will be responded with a refund or a replacement. Please don’t hesitate to contact us if you have any question.