HONGFEI Hearing Aid for The Elderly, Wireless Invisible Miniature Mini Earmuffs

Description

Product Name: Hearing AidHearing aid category: wireless ear canalDisease: hearing loss, hearing impairmentSymptoms: I can't hear, I can't hear, I don't know.Use battery: A10Frequency range: 200Hz~7645HzEquivalent input noise: 27.6dBWorking current: 1.36mACompression rise time: 3msCompression recovery time: 48msHarmonic distortion: 10%Equivalent input noise (dB): ≤32Suitable for people: for patients with mild to severe hearing loss