Origin:China MainlandModel Number:AS-T25 Warranty::One Year Fit Range::Within 80dB Ear Hearing Aid::Digital Hearing Aids Speaker Amplified::Ear With Adjustment,Ear With Adjustment Hearing Aid Batteries Size::A10 10A ZA10 10 S10 CIC Hearing Aids:4 channels and 8 bands Use People::For Deafness/Elderly Digital Hearing Aids::Wireless Hearing Aid Suitable For::Mild to moderate hearing loss Ear Aids:Hearing Device Ear Hearing Amplifier:wireless hearing aid hearing aid digital:hearing aid for elderly hearing aid wireless:intelligent hearing aid sound aid:ear aid sound hearing aid:HEAR AID FOR THE ELDER Hearing aids for deafness:ear sound amplifier hearing aid hearing aid case:hearing aids for the deaf headphones:Wireless Earphones aparelho auditivo:audifonos para sordera Hearing Aids Invisible Super Mini Sound Amplifier For Deafness/Elderly Adjustable Micro Wireless Hearing Aid Hearing Device audifonos para sordera Feature: 1. T23: 4 channel & 8 bands T25: 6 channel & 12 bands 2.Intelligent Noise Reduction System(9DB) 3.Automatic Feedback Compression DFS System 4.Program Switch Beep 5.Secondary Strong Sound Block 6.Multi-channel Expansion 7.Trimmer VC(Three in one button optional) 8.Three Programs 9.Intelligent Frequency Spectrum Analysis System 10.Intelligent Volume Learning 11.Program/Volume Recording 12.Soft Shutdown 13.6 Channel Maximum Output Control 14.Pre-programmed Type(best fitting based on the audiogram) 15.Intermediate Wind Noise Suppression Management System TechnicalSpecification: Max saturation sound pressure level(SSPL):111dB HFA-SSPL90 107dB Peak Gain 405dB HFA Full-on Gain 355dB Frequency range:200Hz~7610Hz Harmonic distortion: 3% Equivalent input noise:23.5 dB Note: 1.Adjust volume to the minimum before wearing; 2.Choose an earplug of slightly bigger size to avoid whistler; 3.Increase volume gradually to avoid sudden increase in sound; 4.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; 5.Keep the ear plug clean; 6.Remove the battery if you don't use it for long time. hearing aids for the deaf , HEAR AID FOR THE ELDER ,ear sound amplifier hearing aid ,Hearing aids for deafness ,sound hearing aid, Ear Hearing Amplifier,digital hearing aids,Wireless Earphones,headphones,audifonos,aparelho auditivo, audifonos para sordera