🎯 Table of Contents

1. Wear Smart

• Clean ears 
• Insert BEFORE powering on 

2. Control

• Tap: 4 volume levels
• 2-press: 3 modes

3. Power

• Auto-ON when removed | Hold 3s to OFF
• First charge: 10-12hrs 

4. ⚠️ Critical Alerts

1. Blocked mic → Muffled sound
2. Wrong earplugs → Howling loop
3. Charge at 5°C-35°C only

5. 21-Day Success

1️⃣ 30min/day → 2️⃣ TV/lyric training → 3️⃣ Full social use

6. Charging Cues

Case: Flash=Charging | Solid=Full
Device: On=Charging | Off=Done

7.💡 Whistle Fix

Test 4 earplugs → Snug fit stops feedback

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👂 Hearing Aid User Manual

1. Before Wearing

• Clean your ear canal with a cotton swab before insertion.
• ⚠️ Important: Excessive earwax may block the sound outlet, causing muted audio.

2. How to Wear

2-1 Select earplugs matching your ear canal size.

2-2 Attach the chosen earplugs to the device.

2-3 Insertion Sequence:

• 👂 Put on the hearing aid first
• 🔛 Turn it on afterward

2-4 Adjust volume to your comfort level.

3. ⚠️ Key Notes

•  Always use properly fitted earplugs to prevent echoes/whistling.
• 🔋Power Protocol: Adjust volume only after securing the device in your ear.

🔍 Troubleshooting: No Sound

1. Verify volume settings match your hearing needs
2. Check battery level/power status
3. Inspect for earwax blockage in sound outlet

4. Maintenance Note

• Clean sound outlet immediately if audio becomes muted or faint.

⚠️ Why Hearing Aids Howl (High-Pitched Whistling)
Understanding the science & solving it simply

-1 The Feedback Loop Explained:
Hearing aids naturally amplify sound, but when:
1️⃣ Poor Seal = Ear canal & earplug mismatch
2️⃣ Sound Escape = Amplified sound leaks out
3️⃣ Re-Amplification = Microphone picks up escaped sound→ Creates continuous loop → Sharp feedback (howling)

-2 💡 Proven Solution:
Your kit includes 4-size earplugs - find your perfect match:

1. Test sizes starting from smallest
2. Ideal fit = Snug seal without discomfort
3. Howling stops = Success!

-3 Bonus Tip:
✅ Always insert fully before powering on
✅ Re-test fit if howling returns (ear canal shape changes seasonally)

5. Power Management

5-1 Turning On

Option 1: Auto-activates 10 seconds after removal from charging case.
Option 2: Press & hold touchpad for 3s → Hear startup beep ("Dī").

⚠️ Critical Notes:
• Insert hearing aid fully into ear before activation to prevent feedback whistling.
• Avoid covering top microphone during use.
• First-time users: Charge 10-12hrs pre-use.

5-2 Turning Off

Option 1: Return to charging case → Auto-shutdown.
Option 2: Press & hold touchpad for 3s.

6. Volume Control

• Quick-tap touchpad to cycle through 4 levels:
1️⃣ "Dū" → 2️⃣ "Dū" → 3️⃣ "Dū" → 4️⃣ "Dī" (max alert)
⚠️ Never block microphone while adjusting.

7. Mode Selection

How to Switch: Double-press touchpad after wearing.
1️⃣ General Mode (1 beep)
2️⃣ Meeting Mode (2 beeps) - Speech focus
3️⃣ Outdoor Mode (3 beeps) - Noise reduction

⚠️ Pro Tip: Start at low volume, gradually increase post-insertion.

⚠️Button Controls: Volume Adjustment & Mode Switching

1. Single Press (1 Tap)
   Adjust the volume level:Tap once to increase volume.
2. Double Press (2 Taps)
   Switch between active modes: E.g., General Mode, Meeting Mode, Ourdoor Mode.

8. Charging Protocol

8-1 Status Indicators

• Case:
🟢 Flashing = Charging | 🟢 Solid = Full
• Device:
🔵 Solid = Charging | Off = Complete

8-2 Best Practices

1. Initial Charge: 10-12hrs for battery activation
2. Routine Charge: 2-3hrs for full capacity
3. Cable: Use original USB only
4. Environment: Charge at 5°C–35°C (41°F–95°F)
5. Storage: Power off → Keep in dry place

9. Cleaning

• Regularly clean earplugs and sound outlet as illustrated.

10. 21-Day Adaptation Guide

🌟 The Hearing Journey

Your brain will rediscover sounds like:
🍃 Rustling leaves | 🐦 Birdsong | 👶 Children's laughter

1️⃣ Week 1: Initial Adjustment

• 🌀 Expect: Amplified background noises
• ⏱️ Action: Start with 30 mins/day → All-day use
• 💪 Key Tip: Persist through initial discomfort

2️⃣ Week 2: Active Training

• Progress: Conversations at normal volume

• Exercises:

  1. 🎧 Lyric identification
  2. 📺 TV quiz prediction

3️⃣ Week 3: Full Integration

• Benefits:

  • Reduced mental fatigue
  • Clear environmental sounds

• Activities:

  1. 🍽️ Restaurant dining
  2. 🎬 Cinema visits
  3. 👨👩👧👦 Family gatherings