Mini Rechargeable Hearing Aid Low-Noise Wide-Frequency One-Click Operation Sound Amplifier Deaf Hearing Aids

SpecificationsProduct name Hearing AidsColor WhiteShell Material ABS PlasticSource Method USBRated Voltage 5VRated Power 15WMaximum OSPL90 ≤117dB±3dBHigh frequency average OSPL90 109dB±4dBAverage gain 25dB±5dBFrequency response range 400Hz 4500HzEquivalent input noise sound level ≤29dB 3Total harmonic distortion ≤7 Related power supply ≤6mAFeatures 3 handy earplug sizes for customized comfort Just 1 button to adjust sound input Fast USB charging with long battery life Portable case with lights to indicate charge How to wear the hearing aids correctly 1 Choose the most comfortable size of earplug 2 Place the earplugs onto the hearing aids 3 Hold the button for 3 seconds to turn it on 4 Press the button briefly to adjust the volume input 5 Place the hearing aid into the ear until it is snug and comfortable 6 Press and hold the button for 3 seconds to turn the hearing aid off again Charging instructions The case Take the included charging cable and plug it into the port When charging the case will show a blue indicator light Once the box is fully charged it will change to white The hearing aids Carefully place them into the charging box A blue light will be displayed while charging and a white light when they are fully charged Package Included 2 x Hearing aid1 x Case1 x User Manual