The Reizen Loud Ear 110dB Gain Personal Amplifier for the hearing impaired is a powerful personal amplifier with a built-in microphone, designed for people with hearing disabilities to use. It has a personal amplifier with 110dB gain and built-in microphone for clear and loud hearing. Voice and sound comes through mini earphone. It picks up sound at a distance of up to 100 feet away. Built-in belt clip allows user to attach it to their belt or clothing. Additional earphones are available to use as spares or replacements.
Power: Includes 2 AAA batteries and single earphone.
Warranty: 90-Day Manufacturer's Warranty.
Sensitivity: 110dB plus-or-minus 3dB per MW.
Frequency Range: 20Hz - 20KHz.
Estimated battery life: 48 hours.