hearing aid / ear trumpet / electronic hearing aid / hard-of-hearing aid / listening device / transistor hearing aid / vaccum-tube hearing aid This device channel digital sound processing allows the user to control volume. Filter out unwanted noise caused by airflow or wind Deliver direct, powerful, and smooth sound right into your ear. Affordable gearing amplifier fit easily in your pocket or handbag - On/off switch - Volume Dial - Mini Microphone - Battery Cartridge (1 x AG13 cell, included) - Two sized earbuds for personalized fit - Max sound output: 129 +/- 5dB - Sound gain >= 45dB - Distortion .

hearing aid / ear trumpet / electronic hearing aid / hard-of-hearing aid / listening device / transistor hearing aid / vaccum-tube hearing aid This device channel digital sound processing allows the user to control volume. Filter out unwanted noise caused by airflow or wind Deliver direct, powerful, and smooth sound right into your ear. Affordable gearing amplifier fit easily in your pocket or handbag - On/off switch - Volume Dial - Mini Microphone - Battery Cartridge (1 x AG13 cell, included) - Two sized earbuds for personalized fit - Max sound output: 129 +/- 5dB - Sound gain >= 45dB - Distortion .