3M 410-5001 E-A-RTONE Insert Earphones 5A Standard Model, 10 ohm

Designed to help provide an exceptionally reliable audiometric test. E-A-RTONE 5A Insert Earphones fit directly inside the ear canal rather than outside and around the ears. This direct "coupling" to the ear canal produces important advantages that can enhance test reliability and minimize or eliminate problems frequently encountered with a supra-aural type earphone.

Advantages: 

• Dramatically Reduces Background Noise 
• Reduces the Need for Masking Noise 
• Reduces Risk of Disease Transmission  
• Increased Test/Re-test Reliability 
• Increases Patient Comfort, Easy Insertion 
• Eliminates Ear Canal Collapse 
• Increases Interaural Attenuation  
• Lightweight & Durable 
• Shock Resistant

E-A-RTone 5A is available in 10 ohm and comes with a sampling of small, standard and jumbo eartips, plus a velcro collar clip.