Hearing Aid Wireless Mini Listen Hearing Aids For Deafness Digital Sound Amplifier Aid Gift Invisible Adjustment Tools

Parameter Attributes 1.4 channels + 8 bands 2.Intelligent noise reduction system (9DB) 3.Adaptive acoustic feedback processing 4.Main wind noise suppression management system 5.Multi-channel expansion 6.Tinnitus masking function 7.Adaptive volume control in different environments 8.Ultra-low background noise 9.Trimmer VC 10.Rich mid-range and high-frequency sounds.

Technical Speifcaiono MAX OSPL90(dB SPL) ：111 HFA OSPL90(dB SPL) ：107 Peak Gain(dB) ：30 HFA FOG(dB) ：28 Frequency Range ：F1≤200Hz-F2≥4800Hz THD at 500Hz ：0.4% THD at 800Hz ：0.2% THD at1600Hz：0.1% Eq.Input Noise Level(dB) ：25.3 Battery Current Drain(mA) ：1.2 Attack Time(ms) ：2 Release Time(ms) ：53

Prompt: There are Whistle as you put the battery into the hearing aid .Please donot worry .because the air presure will make Whistle. ​1.Please adjust lower volume . ​2.Choose the suitable ear plug ​3.Make sure if you put the earplug tightly,sound leak will make the Whistle.