Pyle PHLHA32 Hearing Amplifier for Tv Talking, Volume Adjustable 1 piece Convenient Hearing Amplifier - Wireless & Compact In-Ear Design - 5-Level, Adjustable Volume Control Effectively Reduces Background Noise - Noise-Cancelling & Voice Clarifying Technology Tested to Provide a More Comfortable Listening Experience - Universal Size Fits All Ear Shapes & Sizes ASC (Automatic Signal Control) Regulates & Balances Sound - Comes with (4) Different Sized Ear Plugs / Tips Battery Operated: Requires (1) Button Cell AG3 (LR41) Battery - Includes Storage / Travel Case & (2) Batteries