This is a powerful personal amplifier with a built-in microphone for clear and loud delivery of voice and sound through the single mini earphone. Handy built-in belt clip allows you to attach it to your belt or clothing.
Includes a deluxe folding adult size headphone with folding earpieces for simple storage. Connects to devices with a 3.5mm jack and covered under a 90-day mfg. warranty.
Includes 2 AAA batteries and single earphone. Additional earphones are available to use as spares or replacements.
Sensitivity: 110dB plus-or-minus 3dB per MW
Frequency Range: 20Hz - 20KHz
Estimated battery life: 48 hrs.