Pack of 2 Hearing Amplifier, Behind the Ear, Gain Level: 29�5db, Easy to Use, Clear Sound, Fit Both Ears, Energy-saving Technology, with 3 Ear Buds (Large and Small) to Fit Most Customers. New Flexable Tube Best Fit Over Ear. Ear Buds Made From Special Soft Rubber That's Comfortable. O3 Ag13 Button Cell Battery Included with Travling Case Review