Mini Rechargeable Invisible Digital Hearing Aid Adjustable Sound Amplifier Portable Hearing Aids Earphones For The Deaf Elderly

$6.02

Mini Rechargeable Invisible Digital Hearing Aid Adjustable Sound Amplifier Portable Hearing Aids Earphones For The Deaf Elderly feature Mini cic design High-power chip noise reduction USB charging (no need to replace the battery) specification: material: plastic Color: skin color, white (optional) Maximum sound output: 115+/-3dB Sound gain: 28dB+/-5dB Total harmonic distortion: 3% Frequency range: 300-3500MHz Input noise: 32dB Voltage: DC1.5V Current: 2mA Hearing aid (each): Built-in 25mAh rechargeable battery Charging time: 5 hours Working time: 25 hours Package Included 1 x hearing aid 4 x earplugs (different sizes) 1 x User Manual 1 x USB charging cable Warm reminder Turn the volume to minimum before wearing. Choose a slightly larger earplug to avoid whistling. Gradually increase the volume to avoid sudden increase in sound. If you hear howling, check whether the ears (silicone) are suitable, whether the size of the plug is tight, Choose the right earplugs and plugs to ensure no air leakage. Keep the earplugs clean. note Charger input: AC100-240V, 50-60Hz / 0.15A Charger output: 5V, 1000mA Please use the matching charger to charge the product, otherwise the product may be damaged. If you need to replace the charger, please use a charger suitable for the product. If you use an unsuitable charger to charge the product, it will damage the product.