Eachine Earplug Digital Volume Hearing Aids Amplifier

Introduction: Convenient wear Low noise, low distortion; For people with severe hearing loss; Product use hearing assistive devices. The scope of application of gas conduction hearing disorders. Taboos otitis media or ear suppuration who are disabled. Technical indicators: Maximum saturation sound pressure level of 129dB 4dB Full profile acoustic gain 38dB Frequency range of 450Hz ~ 3800Hz Power Supply Voltage 1.5V Battery model LR44 Features: Maximum saturation sound pressure level: 129dB 4dB Full sound gain: 38dB Harmonic distortion: 15% f 1000Hz 10% Frequency Response: 450Hz ~ 3800Hz Equivalent Input Noise: 30 dB Operating voltage: 1.5V Working current: <8mA Weight: 86g NOTE: If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage. Use for long periods of time, please remove the batteries to prevent battery rot erosion hearing aid components. Please regularly clean the ear plugs or ear molds in order to ensure the normal use of hearing aids. Avoid shock, drop, moisture, and high temperature. Package included: 1 x Digital Tone Hearing Aid 2 x 1.5V Battery 4 x Earplug 2x Earplug Connector 1x User's Manual