🎯 Table of Contents

1. Essentials

1-1 Clean Before Use
1-2 Perfect Fit
1-3 Power Sequence

2. Power & Care

2-1 First Charge
2-2 Low-Voltage Alert
2-3 Weekly Maintenance

3.Adaptation Roadmap

21-Day Rule
1️⃣ Week 1 | Start with 30 mins/day
2️⃣ Week 2 | Train with lyric quizzes & TV dialogue
3️⃣ Week 3 | Master noisy spaces

4.Quick Fixes

4-1 No Sound?
4-2 Feedback Fix

5.Bluetooth Pro Tips

• Tap : Play/pause • Answer calls
• Hold 3s : Toggle Phone/Media modes
• Triple Tap : Cycle hearing modes

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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

• 🟢 On: Activate after full insertion to prevent feedback
• 🔴 Off: Switch to OFF position when not in use

6. Volume Control

• 🔼 Slide upward for louder sound (4 levels)

• 🔽 Slide downward to reduce volume

7. Bluetooth Connection

🔷M-Key Function Guide

①Short Press (1 Tap)

Function: Play/Pause Media or Answer/End Calls

• How to Use:

• • Briefly press the M-key once.

  • During Media Playback 🎵:

    • Tap once to ⏸️ pause music, podcasts, or audio.
    • Tap again to ▶️ resume playback.

  • During Incoming Calls 📞:

    • Tap once to ✅ answer a call.
    • Tap once again to ❌ end the call.

②Long Press (Hold 3 Seconds)

Function: Switch to Bluetooth Mode

• How to Use:

  1. While in Hearing Aid Mode , press & hold the M-key for 3 seconds.
  2. Release when you hear two rising beeps and feel a vibration.

• What Happens:

  • Exits hearing aid functions
  • Activates Bluetooth connectivity for:
    ▶️ Streaming music/podcasts 🎧
    ▶️ Taking phone calls 📱
    ▶️ Pairing with TVs/tablets 📺

③Double Click (2 Rapid Taps)

Function: Single-Ear Bluetooth Connection

• How to Use:

  • Quickly tap the M-key twice in succession.

• What It Does:

  • Activates Bluetooth in one hearing aid only
  • Use one ear for:
    ▶️ Phone conversations 📞
    ▶️ Focused listening (e.g., audiobooks)

④Triple Click (3 Taps)

Function: Return to Hearing Aid Mode

• How to Use:

  1. While in Bluetooth Mode , tap the M-key 3 times quickly.
  2. Confirm with one long beep

• What Happens:

  • Disconnects Bluetooth audio
  • Restores hearing support:
    ▶️ Environmental sound processing
    ▶️ Speech enhancement
    ▶️ Noise reduction

⑤Four Clicks (4 Rapid Taps)

Function: Manual TWS Group Pairing

• How to Use:

  • Quickly tap the M-key 4 times.

• What It Does:

  • Activates True Wireless Stereo (TWS) pairing to sync both hearing aids for:
    ▶️ Stereo sound
    ▶️ Movie watching
    ▶️ Balanced group conversations

8. Charging Guide

8-1 Charging Case

• Flashing green: Charging
• Solid green: Fully charged

8-2 Device Indicators

• Always on: Charging
• No light: Charge complete

8-3 Charging Protocol

1. Use included adapter/USB cable
2. Power off before charging
3. Initial Charge: 10-12 hours required
4. Long Storage: 12-hour recharge
5. Charge when volume drops
6. Unplug immediately after completion

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：

1. Reduced mental fatigue
2. Clear environmental sounds

• Activities:

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