HA-PEN01
Hearit.AI SmartPen

Table of Contents
- Introduction
- Specifications
- Quick Start Guide
- Hardware Guide
- Features in Detail
- Firmware
- Support
- Legal
1. Introduction
Your Dual-Purpose Voice & Writing Companion
The HA-PEN01 is an innovative AI voice recording pen that seamlessly combines professional audio recording capabilities with traditional writing functionality. Through advanced AI technology and dual recording modes, it helps you capture, organize, and analyze voice information in meetings, lectures, interviews, and daily communication. The HA-PEN01 serves as your efficient and reliable partner.
1.1. Core Features Overview
- ✨ AI Voice Interaction: Connect to cloud-based large language models for intelligent Q&A, content summarization, and transcription
- ✍️ Dual Functionality: Professional voice recording and smooth writing in one elegant device
- 📝 TF Card Local Recording: Offline recording with expandable storage - never miss important details
- 🔗 Multi-Platform Compatibility: Seamlessly connects to iOS and Android devices through the Hearit.AI App
- 🔋 Long Battery Life: Extended recording sessions for all-day demands
- 🎤 Professional Audio Quality: Clear voice capture with advanced noise reduction
- 💾 Multiple Recording Modes: APP-connected conversations and local TF card storage
- 🖊️ Retractable Pen Core: Traditional writing functionality with replaceable refills
2. Specifications
The HA-PEN01 is an advanced AI voice recording pen with dual functionality, combining professional audio recording with traditional writing in an elegant pen form factor.
📦 What's in the box?
- 1 × HA-PEN01 Recording Pen
- 1 × USB Charging Cable
- 1 × User Manual
- 1 × Pen Refill (pre-installed)
📄 Technical Specifications:
| Function | Parameter Details |
|---|---|
| Product Model | HA-PEN01 |
| Product Name | Hearit.ai SmartPen |
| Connection | Bluetooth 5.0 (BLE) |
| Charging Interface | USB Type-C |
| Charging Specification | 5V / 1A |
| Storage Support | TF Card (MicroSD) - FAT32 format |
| Recommended TF Card Size | 8GB to 32GB |
| Button Controls | Single multi-function button (on pen cap) |
| LED Indicator | Multi-color status indicator (behind pen clip) |
| Audio Quality | Professional-grade with noise reduction |
| Writing Function | Retractable pen core with standard refills |
| Battery Life | Several hours of continuous recording |
| App Support | Hearit.AI (iOS 11.0+ / Android 7.0+) |
3. Quick Start Guide
Get started with your HA-PEN01 in just a few simple steps.
Step 1: Unboxing & Charging
- Take the HA-PEN01 device and USB charging cable out of the package
- Before first use, we recommend fully charging the device using the included charging cable
- Charging (Device Off): Green LED solid
- Charging (Device On): Cyan/Teal LED (Blue + Green)
- Fully Charged: LED turns off
- Long-press the top button on the pen cap for 3 seconds to power on—you will see a blue LED solid light
Step 2: Choose Your Usage Mode
Select the recording method based on your usage requirements.
Mode A: Connect via App (For AI-Powered Recording)
This mode provides full access to AI features including transcription, translation, and intelligent analysis.
1. Download the App:
a. Download links:
Alternatively, search for "Hearit.AI" in Google Play Store or Apple App Store.
b. Open the App and complete registration or login as prompted
2. Bluetooth Pairing:
a. Enable Bluetooth on your phone
b. Power on the device by long-pressing the top button on the pen cap
- Confirmation: Blue LED becomes solid
c. In the Hearit.AI App home page, tap "Add Device" and select your device model (HA-PEN01) from the list
d. Follow the App prompts to complete the connection. Once connected successfully, the App will display "Connected"
e. Tap "Start Using" to enter the main interface
Mode B: TF Card Local Recording (For Offline Use)
This mode allows standalone recording without phone connection, storing audio files directly to a TF card.
1. Prepare TF Card:
a. Insert a formatted TF card (FAT32, 8GB-32GB recommended) into the TF card slot
b. Ensure sufficient storage space is available
2. Direct Use:
a. With device powered on, single press the top button to start recording
- Purple LED becomes solid during recording
- Red LED flashes twice if TF card is not inserted
b. Single press again to stop recording
c. Connect device to computer via USB to access recorded audio files
Step 3: Start Using
Congratulations! Your device is now set up. You can now begin exploring the powerful features of the HA-PEN01.
Using the Pen:
-
APP Recording: Double press top button to start/stop AI-powered recording
-
TF Card Recording: Single press top button to start/stop offline recording
-
Writing: Rotate pen tip counterclockwise to extend writing core
-
Mode Switching: Triple press top button to change AI modes (when connected to app)
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4. Hardware Guide
4.1. Button Operations
Top Button (Located on Pen Cap)
The HA-PEN01 features a single multi-function button on the pen cap that controls all device operations.
| Operation | Function | LED Feedback |
|---|---|---|
| Single Press | Start/Stop TF card recording | 🟣 Purple solid (recording) 🔴 Red flashes 2× (no TF card) |
| Double Press | Start/Stop APP conversation | 🟣 Purple solid (recording) 🔴 Red flashes 2× (BLE not connected) |
| Triple Press | Switch AI modes (APP connected) | 🔴 Red flashes 2× (BLE not connected) |
| Long Press (3s) | Power On/Off | 🔵 Blue solid (on) 🔴 Red flashes 3× (off) |
| Press 5× + Hold | Enter USB firmware update mode | LED turns off |
4.2. LED Indicator Status
The LED indicator is positioned behind the pen clip for easy status visibility.
System Status
| Status | LED Pattern | Meaning |
|---|---|---|
| Power On | 🔵 Blue solid | Device is powered on and ready |
| Power Off | 🔴 Red flashes 3× | Device shutting down |
| Charging (Off) | 🟢 Green solid | Device charging while powered off |
| Charging (On) | 🔵🟢 Cyan/Teal | Device charging while powered on |
| Fully Charged | LED off | Charging complete |
Recording Status
| Status | LED Pattern | Meaning |
|---|---|---|
| TF Recording Active | 🟣 Purple solid | Recording to TF card |
| APP Recording Active | 🟣 Purple solid | Recording via app |
| TF Card Error | 🔴 Red flashes 2× | TF card not inserted or error |
| BLE Not Connected | 🔴 Red flashes 2× | Bluetooth connection required |
4.3. Power & Charging
Interface: USB Type-C
Charging Status:
- Device Off + Charging: 🟢 Green solid
- Device On + Charging: 🔵🟢 Cyan/Teal (Blue + Green)
- Fully Charged: LED turns off
Power Management:
- Long press top button (3s) to power on/off
- Auto sleep after 3 minutes of inactivity (when not recording)
- Can charge while recording
Device Layout:
- Top Button: On pen cap for all controls
- LED Indicator: Behind pen clip for status
- Charging Port: USB Type-C interface
- TF Card Slot: For local storage expansion
- Writing Tip: Retractable pen core
5. Features in Detail
5.1. AI Voice Interaction
After connecting via the App, the HA-PEN01 provides powerful AI-powered voice interaction capabilities.
🤖 APP-Connected Recording
How to use:
- Ensure device is paired with Hearit.AI app (blue LED solid when powered on)
- Double press the top button to start conversation
- Purple LED becomes solid during recording
- If not connected: Red LED flashes twice
- Speak clearly with pen at comfortable distance
- Double press again to end conversation
- View transcript and AI-processed content in the app
Features:
- Real-time Transcription: Instant voice-to-text conversion
- AI Processing: Intelligent content analysis and summarization
- Cloud Storage: Automatic backup to your account
- Multi-language Support: 52+ languages with automatic detection
- Mode Selection: Switch between AI modes with triple press
🌍 AI Mode Switching
Triple press the top button when connected to APP to cycle through:
- Translation Mode: Real-time multilingual translation
- Meeting Mode: Professional meeting transcription and summaries
- Custom Mode: Personalized AI assistant behavior
- Note-taking Mode: Intelligent note organization
5.2. TF Card Local Recording
Record anytime without connecting to your phone - perfect for offline use.
💾 Offline Recording
Prerequisites:
- TF card properly inserted (FAT32 format, 8GB-32GB recommended)
- Sufficient storage space available
- Device powered on
How to use:
- Insert TF card into device slot
- Single press the top button to start recording
- Purple LED solid during recording
- Red LED flashes twice if TF card not inserted
- Speak normally near the device
- Single press again to stop recording
- Connect to computer via USB to access audio files
Features:
- No Internet Required: Complete offline functionality
- High-Quality Audio: Professional-grade recording with noise reduction
- Large Capacity: Support for various TF card sizes
- Easy File Access: Device appears as USB storage when connected to computer
- Standard Audio Format: Compatible with common media players