HA-MIC04

AI Voice Recorder with WiFi

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Table of Contents

1. Product Overview
2. App Download
3. Pairing & Connection
4. Button Controls
5. Operational States
6. LED Indicators
7. Power Management
8. Modes of Operation
9. Internal Storage Recording
10. WiFi Configuration
11. Firmware Update
12. FAQ (Frequently Asked Questions)
13. Experimental Features

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Product Overview

The HA-MIC04 is an ultra-portable AI voice recorder designed for efficiency-driven professionals, journalists, and students. Its core mission is to reliably capture every clear conversation and rapidly convert it into editable digital text.

By providing an extremely lightweight, long-lasting, and user-friendly recording solution, the MIC04 frees users from the tedious tasks of manual note-taking and transcription. It's the AI evolution of the traditional voice recorder and a dependable tool for boosting personal productivity.

🏥 Medical Applications

The HA-MIC04 serves as an excellent entry-level solution for medical professionals who need reliable voice recording:

• Cost-Effective Documentation: Ideal for small medical practices or individual practitioners starting with digital voice documentation
• Ultra-Portable Design: At just 36g, it's the lightest option for professionals who prioritize mobility
• Extended Battery Life: 18-hour mixed-use operation ensures all-day reliability without charging concerns
• Basic Integration Ready: Simple API integration for practices looking to start with voice-to-text conversion

🐾 Veterinary Practice Advantages

The HA-MIC04 is particularly well-suited for veterinary environments:

• Budget-Friendly Entry Point: Perfect for small animal clinics testing voice documentation workflows
• All-Day Reliability: 18-hour battery life covers even the longest veterinary shifts without charging
• Pocket-Sized Convenience: Ultra-lightweight design ideal for mobile veterinarians and house calls
• Practice Management Integration: Custom SDK development available for veterinary practice management
• Easy Staff Adoption: Simple one-button operation reduces training time for veterinary staff

📊 Veterinary Clinic Performance

Scenario	Performance	Best Use Case
Routine Checkups	Excellent	Standard documentation needs
Quiet Consultation Rooms	95% accuracy	Most veterinary interactions
Moderate Background Noise	85% accuracy	Busy clinic periods
High-Noise Environments	75% accuracy	Consider MIC05 for optimal results

💡 Veterinary Tip: For clinics with frequent high-noise situations (multiple animals, busy waiting areas), consider the MIC05's advanced AI noise reduction.

🔄 MIC04 vs MIC05: Choose Your Perfect Match

Aspect	HA-MIC04 (This Device)	HA-MIC05	Recommendation
Target User	Budget-conscious practices	Advanced clinical environments	MIC04: Perfect for getting started
Weight	36g (Ultra-lightweight)	60g	MIC04: Better for all-day wear
Battery	18 hours (Longer lasting)	15 hours	MIC04: Less charging interruptions
Price	Entry-level	Premium	MIC04: Better ROI for basic needs
Noise Reduction	Standard	AI-powered (95% clarity)	MIC05: Better for noisy environments
Built-in Speaker	No	Yes (0.7W)	MIC05: Standalone audio feedback
NFC Reader	No	Yes (Patient ID scanning)	MIC05: Advanced patient management
Best For	Small practices, budget-conscious	Large clinics, advanced features	Choose based on practice size & budget

💡 Why Choose MIC04 for Your Medical Practice?

• ✅ Lower Initial Investment: Perfect for testing voice documentation workflows
• ✅ Proven Reliability: Established technology with consistent performance
• ✅ Longer Battery Life: Fewer interruptions during busy clinic days
• ✅ Ultra-Portable: Ideal for mobile medical professionals or multi-location practices
• ✅ Easy Integration: Simple API makes it developer-friendly for basic implementations

📈 Upgrade Path Available

Start with MIC04 and upgrade to MIC05 when your practice grows or needs advanced features like AI noise reduction and NFC patient management.

🧪 Veterinary Sample Testing Program

Risk-Free Evaluation for Animal Clinics:

• Clinic-Specific Testing: Both MIC04 and MIC05 samples available for side-by-side comparison
• Real-World Scenarios: Test in actual veterinary environments with animal patients
• Integration Demo: Live demonstration of voice-to-record conversion
• Fast Procurement:
  • Alibaba direct shipping (2-3 days)
  • Veterinary distributor network
  • Emergency same-day delivery in major cities
• Veterinary Practice Special: 30-day money-back guarantee + free setup consultation

📋 Veterinary Integration Checklist

Pre-Purchase Evaluation:

• ✅ Test audio quality during peak clinic hours
• ✅ Evaluate battery life during typical veterinary shifts
• ✅ Assess staff adoption and ease of use
• ✅ Verify integration with existing practice management software
• ✅ Test performance with different animal species and noise levels

📦 What's in the box?

• 1 x HA-MIC04 Device
• 1 x Type-C Charging Cable

📄 Technical Specifications:

Feature	Details
Product Name	AI Voice Recorder
WiFi Standard	IEEE802.11 b/g/n
Bluetooth Version	V5.3
Transmission Frequency	2.4-2.48 GHz
Transmission Distance	10 m
Storage Capacity	1GB SD NAND
Feedback	Buzzer + Vibration motor
Charging Interface	Type-C
Charging Voltage	5V / 1A
Charging Time	0.5 hours
Work Time (Mixed-Use)	~18 hours
Standby Time	~800 hours
Battery Capacity	3.7V, 650mAh
Material	Aluminum Alloy + PCBA
Net Weight	36g
Dimensions	65 × 22.6 × 16 mm

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App Download

Download the Hearit.AI app from:

• Android
• iOS

Alternatively, search for "Hearit.AI" in Google Play Store or Apple App Store.

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Pairing & Connection

1. Launch the app and create an account or sign in.
2. Select your language.
3. Long-press the front button for 3 seconds to power on the device.
   • Confirmation: Buzzer sound + steady blue LED.
4. Enable Bluetooth on your phone and select your device in the app.
5. Tap "Start Using" to enter the main interface.

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Button Controls

Front Button (Main Control)

Power On/Off

• Long-press (3 seconds):
  • Turns the device on/off.
  • Feedback: Buzzer sound + steady blue LED (when powered on).

Start/Stop Recording

• Single press:
  • Starts or stops recording.
  • Feedback: Short vibration + single beep.
  • LED Status:
    • Blue (low): Not recording.
    • Blue (high): VAD (Voice Activity Detection) inactive.
    • Purple: VAD active (recording mode with audio input).

Local Storage Recording (Firmware v1.5.0+)

• Double press (when Bluetooth is disconnected):
  • Starts or stops recording to internal storage.
  • Feedback: Short vibration + single beep.
  • LED Status:
    • Blue (low): Not recording.
    • Blue (high): VAD inactive.
    • Purple: VAD active (recording mode with audio input).

OTA Updates

• Press 5 times quickly:
  • Checks for firmware updates.
  • LED Status:
    • Steady yellow: Checking for updates.
    • Flashing yellow: Update in progress.
    • Flashing red: WiFi issue or update failed.
    • Flashing white: No updates available.

Factory Reset

• Press 3 times quickly, then hold:
  • Resets the device to factory settings.

Firmware Update Mode

• Press 5 times quickly, then hold:
  • Enters firmware update mode.

Side Button (Mode Switch)

Switch Modes

• Single press: Cycles through modes:
  • Translation Mode 🌍
  • Meeting Mode 📓
  • Custom Mode 🤖
  • Note-Taking Mode ✍️
• Confirmation:
  • Voice prompt via app + short vibration.

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Operational States

Basic Controls

#	Function	Precondition	Steps	Expected Result	Buzzer Feedback	LED Status
1	Power On	Device in sleep mode	Click front/side button	Device wakes up & broadcasts BLE	None	Red/Blue alternating flashes (3x)
2	Power On	Device awake, BLE disconnected	Click/hold front/side button	"BLE disconnected" prompt	2 short beeps	Red flashes every 0.5s (2x)
3	Sleep Mode	Device awake, BLE disconnected	Wait >5 minutes	Device enters sleep mode	None	None
4	Pairing Success	BLE disconnected	Paired with app	Pairing completed	None	Blue flashes every 0.8s (3x)
5	Start/Stop Recording	BLE connected	Click front button	Audio streams to app	1 short beep	Blue solid (recording)
6	Switch Mode	BLE connected	Click side button	Mode changed via app	None	Blue flashes once
7	TTS Playback	BLE connected	Hold side button	App announces current mode	None	Blue flashes once
10	BLE Disconnect	BLE connected	Phone disconnects	Connection lost	None	Red flashes every 0.5s (3x)
11	Reconnect	BLE disconnected, app active	Bluetooth enabled	Auto-reconnect to phone	None	Blue flashes every 0.8s (3x)
12	Low Battery Alert	Device in use	Battery ≤10%	Alert every 1 minute	1 long beep	Red flashes every 0.8s (2x)
13	Charging	Device charging	USB-C connected	Charging activated	None	Green solid
14	Fully Charged	Battery 100%	USB-C connected	Charging completed	None	Green LED off

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LED Indicators

State	LED Pattern	Meaning
Power On	Red/Blue alternating flashes (3x)	Device waking up
BLE Disconnected	Red flashes (2x, 0.5s interval)	Connection lost
Pairing Success	Blue flashes (3x, 0.8s interval)	Pairing successful
Recording	Blue solid / Purple (VAD active)	Recording active
Mode Switch	Blue flash (1x)	Mode changed
Low Battery	Red flashes (2x, 0.8s interval)	Battery ≤10%
Charging	Green solid	Charging in progress
Full Charge	LED off	Charging complete
OTA Update	Yellow steady/flashing	Update in progress
Factory Reset	Red steady	Reset in progress

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Power Management

Charging

• Interface: USB-C port
• Status:
  • Charging: Green LED solid
  • Full: LED turns off

Low Battery Alert

• Trigger: Battery ≤10%
• Reminder:
  • One long beep every minute
  • Red LED flashes every 0.8s, twice

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Modes of Operation

Translation Mode 🌍

• AI-powered translation with voice output
• Auto-detects spoken language
• Great for international conversations

Meeting Recorder 📓

• Record meetings with high-quality audio
• Convert speech to text with accuracy
• Get organized meeting summaries

Custom Model 🤖

• Add your own AI instructions
• Choose from ready-to-use models
• Adapt to different scenarios

Note Taking Mode ✍️

• Speak your tasks naturally
• Auto-organize into categories
• Smart deadline detection

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Internal Storage Recording

Starting with firmware v1.5.0, the HA-MIC04 supports recording directly to its internal storage without requiring an active Bluetooth connection.

How to Use

1. Start Recording:

   • Ensure the device is powered on and Bluetooth is disconnected
   • Double-press the front button to start recording
   • Feedback: Short vibration + single beep
   • LED Status: Blue (high) when VAD is inactive, Purple when VAD is active

2. Stop Recording:

   • Double-press the front button again
   • Feedback: Short vibration + single beep
   • Recording will be saved to internal storage

Accessing Recorded Files

1. Connect your HA-MIC04 to a computer using a USB cable
2. The device will appear as a USB mass storage device (similar to a USB flash drive)
3. Browse to the device and access your recorded audio files
4. Copy files to your computer as needed

Technical Details

• Files are saved in standard audio format
• Storage is accessible via standard USB file transfer protocols
• No special software required to access recordings
• Device operates like a standard USB flash drive when connected to a computer

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Developer Integration & SDK Support

🔧 Simple Integration for Development Teams

The HA-MIC04 offers streamlined integration perfect for teams looking to quickly implement voice recording capabilities without complex setup requirements.

Integration Advantages

Feature	HA-MIC04 Benefit	Perfect For
Simple API	Fewer endpoints, easier to learn	Small development teams
Fast Setup	Basic integration in 1-2 days	Quick proof-of-concepts
Lower Complexity	Minimal configuration required	First-time hardware integrators
Proven Stability	Mature, tested codebase	Production-ready applications

Integration Capabilities

• Available Now: Complete REST API with full documentation
• API Features: Device control, audio recording, transcription services
• SDK Development: Custom SDK development available for your specific platform
• Proven Technology: Same API foundation as MIC05 with simplified feature set

Integration Timeline

• Direct API Integration: 3-5 days (using REST API)
• Custom SDK Development: 1-2 weeks (simpler than MIC05 due to fewer features)
• Practice Management Integration: Custom SDK can be developed based on requirements

Developer Resources

• 📚 Complete API Documentation: Full REST API reference and examples
• 🛠️ Custom SDK Service: We develop SDKs tailored to your needs
• 💬 Technical Support: Direct access to our development team
• 🧪 API Testing: Full API access for development and testing

💡 Perfect for Testing & Pilot Programs

The MIC04 is ideal for medical practices wanting to:

• Test voice documentation workflows before full commitment
• Implement a pilot program with minimal investment
• Evaluate integration complexity with existing systems
• Train staff on voice recording processes

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WiFi Configuration

1. Connect to WiFi Configuration Portal

1. Visit https://hearit.ai/wifi/ in your web browser
2. Enter your WiFi network name (SSID) and password
3. Important: Make sure your WiFi network operates on the 2.4GHz frequency band

2. Connect Your Device

1. Click "Start Configuration"
2. When prompted, search for and connect to your MIC04 device

3. Transfer WiFi Credentials

The website will automatically transmit your WiFi credentials to your MIC04 device

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Firmware Update

Regular firmware updates ensure your HA-MIC04 device operates with the latest features and optimizations. This section explains how to update your device's firmware over-the-air (OTA).

Prerequisites

• Your MIC04 device must be connected to a 2.4GHz WiFi network
• Ensure your device has at least 50% battery charge
• Make sure the device is within good WiFi signal range

Update Procedure

1. Configure WiFi Connection

Before updating firmware, make sure your device is properly connected to WiFi by following the WiFi Configuration instructions above.

2. Initiate Firmware Update

1. Ensure your device is powered on and connected to WiFi
2. Quickly press the Front Button 5 times in succession
3. The device will automatically check for available updates

3. Monitor Update Progress

The LED indicator provides real-time feedback on the update process:

LED Status	Meaning	Action Required
Steady Yellow	Checking for updates	Wait while the device connects to the update server
Flashing Yellow	Update in progress	Do not turn off or reset the device during this process
Flashing Red	WiFi issue or update failed	Check your WiFi connection and try again
Flashing White	No updates available	Your device already has the latest firmware

4. Update Completion

When the update process completes successfully:

• The device will automatically restart
• The LED will return to its normal state
• Your device will be ready to use with the latest firmware improvements

Latest Firmware Features

Version 1.5.0

• Internal Storage Recording: Record audio directly to device storage without requiring a Bluetooth connection
• Access recordings by connecting the device to a computer via USB cable
• Improved voice activity detection (VAD) algorithms
• Various bug fixes and performance improvements

Troubleshooting

If your firmware update fails (indicated by flashing red LED):

1. Check that your WiFi network is operating on the 2.4GHz band (5GHz is not supported)
2. Ensure your WiFi signal is strong where the device is located
3. Verify your WiFi network has internet access
4. Try moving closer to your WiFi router
5. Restart your device and try the update process again

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FAQ (Frequently Asked Questions)

1. How do I switch between modes?

   • Press the side button once to cycle through available modes.

2. What happens when the battery is low?

   • Device will provide voice and LED alerts every minute when battery is ≤10%.

3. How do I update the firmware?

   • Press the front button 5 times quickly to check for updates.

4. How do I record without connecting to my phone?

   • Make sure your device has firmware v1.5.0 or higher
   • With Bluetooth disconnected, double-press the front button to start/stop recording
   • Connect the device to a computer via USB to access recordings

5. What should I do if the device doesn't connect?

   • Ensure Bluetooth is enabled on your phone.
   • Try resetting the device by pressing the front button 3 times quickly, then hold.

6. How does MIC04 compare to MIC05 for medical use?

   • MIC04: Best for small practices, budget-conscious, longer battery life (18h), ultra-portable (36g)
   • MIC05: Better for busy clinics, AI noise reduction, built-in speaker, NFC patient scanning
   • Recommendation: Start with MIC04 for basic needs, upgrade to MIC05 for advanced features

7. Can I test the device before full implementation?

   • Yes! We recommend starting with MIC04 for pilot programs
   • Perfect for testing voice documentation workflows in your clinic
   • Low-risk way to evaluate staff adoption and integration complexity

8. How complex is the integration with our existing systems?

   • MIC04: Complete REST API available now, custom SDK development offered
   • Designed for teams new to hardware integration
   • 3-5 days for direct API integration, 1-2 weeks for custom SDK
   • Practice management integration: custom SDK can be developed based on your requirements

9. What's the difference in audio quality between MIC04 and MIC05?

   • MIC04: Standard high-quality recording, suitable for most clinical environments
   • MIC05: AI-powered noise reduction with 95% speech clarity, better for very noisy clinics
   • Both provide professional-grade audio for medical documentation

10. What are the specific considerations for veterinary use?

    • Animal Noise: MIC04 handles standard veterinary environments well, but very noisy situations (multiple barking dogs) may benefit from MIC05's advanced AI
    • Battery Life: 18-hour battery life covers the longest veterinary shifts, perfect for mobile veterinarians
    • Integration: Custom SDK development available for veterinary practice management systems, other veterinary software can be integrated via our REST API or custom SDK
    • Staff Training: One-button operation minimizes training time for busy veterinary staff

11. Can I get samples for testing in my veterinary clinic?

    • Yes! MIC04/MIC05 sample pairs available specifically for veterinary practice evaluation
    • Fast delivery: Alibaba (2-3 days) or direct manufacturer (5-7 days)
    • 30-day risk-free trial with full refund guarantee
    • Free integration consultation included with sample orders
    • Test in real clinic environments with actual animal patients

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Experimental Features

• Several experimental features are available in the web-demo version.
• Web-demo supports Windows, macOS, Android (iOS not supported).
• Access via webdemo.hearit.ai.