FEIE Manuals & User Guides

FEIE A28 Digital Rechargeable Wired Box Type Hearing Aid Instructions

June 18, 2026

FEIE A28 Digital Rechargeable Wired Box Type Hearing Aid Specification EN-A28 parameters: OSPL90: ≤ 112 + 3 dB Output sound pressure level (average value at high frequency): 108 ±4 dB…

FEIE DJ EN-D22 Pro Hearing Aid Amplifier Instruction Manual

June 9, 2026

Ting DJ EN-D22 Pro Hearing aid hearing amplifier rechargeable in the ear hearing sound amplifier Feature: Imported chips Intelligent noise reduction Zero howling High quality clear sound Comfortable fit Touch…

FEIE G-28D Rechargeable Digital Hearing Aid Owner’s Manual

June 9, 2026

FEIE G-28D Rechargeable Digital Hearing Aid Owner's Manual   Feature Peak Gain（dB）：38dB，Suitable for mild to moderate hearing loss （Reference hearing loss map） Full-digitalchip： 16-channel of professional audio processing. Provide more…

FEIE ECE R107 Certificated Vehicle Fire Protection System Instruction Manual

April 8, 2026

FEIE ECE R107 Certificated Vehicle Fire Protection System Introduction The FEIE Vehicle Fire Protection System is an advanced fire suppression solution designed to automatically detect and extinguish fires in vehicles.…

FEIE EN-D25 Ear-clip Hearing Device User Manual

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Comprehensive user manual for the FEIE EN-D25 ear-clip hearing device, covering setup, charging, usage, maintenance, troubleshooting, and technical specifications.

FEIE EN-D17 Hearing Aid User Manual

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Comprehensive user manual for the FEIE EN-D17 hearing aid, covering device overview, charging, usage, maintenance, troubleshooting, and technical specifications.

FEIE G-28D BTE Digital Hearing Aid User Manual

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User manual and technical specifications for the FEIE G-28D rechargeable BTE digital hearing aid. Includes setup instructions, features, and package contents.

FEIE R11 Digital Rechargeable Hearing Aid Instruction Manual

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Comprehensive instruction manual for the FEIE R11 digital rechargeable hearing aid, covering usage notes, maintenance, environmental conditions, and safety precautions.

FEIE EN-A28 Hearing Aid Operation Guide

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Operation guide and technical specifications for the FEIE EN-A28 digital rechargeable wired box-type hearing aid.

FEIE R10 Hearing Aid Instruction Manual: Invisible Rechargeable Digital BTE Sound Amplifier

Instruction Manual

User guide for the FEIE R10 Invisible Rechargeable Digital High Power BTE Hearing Aid Sound Amplifier. Covers scope of application, usage notes, maintenance, environmental conditions, and contraindications for conductive hearing…