SuperEar Plus SE7500 Personal Sound Amplifier (PSAP), Pocket Sound Amplifier, Headphones & Discreet Earbuds w/Auto Shut off & Case, On/Off Volume Control for Adults, Audiologists, SeniorsBrand: SuperEar Features: PERSONAL SOUND AMPLIFIER: SuperEar Plus SE7500 is designed to increase ambient sound gain 50+ decibels, and boasts up to 80 hours of battery life with an automatic shut off feature. The adjustable volume control wheel lets you customize your sound experience and works outdoors, indoors, and virtually anywhere. AMPLIFIES AMBIENT SOUND: The SuperEar Plus amplifies all ambient sound gain by up to 50 dB, and the microphone has