Hearing Aids Headphone Amplifier In-Ear Mini Personal Sound Amplifier (Left or Right)- Helps to Aid Your Ability to Hear

Description

Name: Hearing aidsMaximum sound output: ~ 120 dBMaximum sound gain: ≥30dBFrequency range: 250 ~ 3800 HzInput noise: 50 dBBattery: AG3 button battery (included)Working voltage: DC1.5V& Nbsp; Current job:? material: plasticWeight: 3gOuter packing: carton;Size: 2.1 * 1.6 cm / 0.83 * 0.63 inch1 * hearing aids1 * English User Manual4 * & nbsp;2 * button batteryBox packing