LJXAN Hearing Aids For The Elderly Wireless Invisible Ear-Like Ear Hearing Sound Amplifier Adjustable Headphones Hearing Aids Deaf And Dumb XUAN

Description

Product Name: Hearing AidProduct Category: Charging ear stylePacking size: 150*106*44mmCharging time: charging time is 2-3 hours, continuous use of 13-18 hours, standby 5-7 daysPower: Relative error of 1.4v is + 5-10%The maximum treasure box sound pressure level: 118 (OSPL90)High frequency average: 109Complete sound gain: 32 (1600HZ)Equivalent input noise level: 28Total harmonic distortion: 8%Frequency response range: 300-3500For the crowd: Suitable for mild to moderate hearing loss, especially for mid-frequency, high-frequency loss of hearing loss for useMatters needing attention: often use a small brush to clean the earwax on the hearing aid, grease, long-term use, take out once a month charge