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TR01

TR01

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. TF Card Recording
  10. Firmware Update
  11. FAQ (Frequently Asked Questions)

Product Overview​

The TR01 is a versatile voice assistant device that supports both Classic Bluetooth and BLE connections. It offers multiple recording modes and seamless voice interaction capabilities.

📦 What's in the box?

  • 1 x TR01 Device
  • 1 x Type-C Charging Cable

📄 Technical Specifications:

FeatureDetails
Product NamePortable ChatGPT Translator
WiFi StandardIEEE802.11 b/g/n
Bluetooth VersionV5.3
Transmission Frequency2.4-2.48 GHz
Bluetooth Distance10 m
Speaker Power2W max
Charging InterfaceType-C
Charging Voltage5V
Charging Time1 hour
StorageOptional TF Card support
FeedbackMotor vibration prompt
LED IndicatorThree-color LED
Working Time8-10H (Bluetooth) / 2-3H (WiFi)
Standby Time~1500 hours
Battery Capacity3.7V, 1200mAh
MaterialPlastic + Aluminum alloy + PCBA
Net Weight82g
Dimensions110 × 41.5 × 13.1 mm

App Download​

To use TR01, download the Hearit.AI app:

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

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. Add Your Device
  5. Tap "Start Using" to enter the main interface.

Pairing & Connection​

Power On/Off​

  • Power On: Long press the pairing button
    • Device turns on and broadcasts both Classic Bluetooth and BLE signals
    • Vibration: Two short vibrations
  • Power Off: Long press the pairing button
    • Vibration: Two short vibrations

TF Card Recording (Firmware v1.5.0+)​

  • Condition: Device powered on, Bluetooth disconnected
  • Action: Double-press power button
  • Function: Starts/stops recording to TF card
  • Feedback:
    • Short vibration
    • Recording: Status LED blue flashing
    • Stopped: Returns to Bluetooth waiting state

Bluetooth Pairing​

  1. Clear Pairing Information:

    • Condition: Device is working and Classic Bluetooth is connected
    • Action: Press 3 times quickly, then hold
    • Feedback: One long vibration

  2. Classic Bluetooth Pairing:

    • Condition: Device is working, both Classic Bluetooth and BLE are disconnected
    • Result:
      • Status LED blinks
      • "Connected" voice prompt

  3. BLE Pairing:

    • Condition: Device is working, Classic Bluetooth is disconnected, BLE is connected
    • Result:
      • Status LED blinks
      • "Connected" voice prompt

Button Controls​

TR01 buttons

Translation Button​

  • Action: Single press
  • Function: Notifies app to enter translation mode and starts/stops audio transmission
  • Feedback:
    • One vibration
    • Status LED: Blue light steady on during recording
    • Button LED: Green light turns on when pressed, remains on until pressed again

AI Chat Button​

  • Action: Single press
  • Function: Notifies app to enter note-taking mode and starts/stops audio transmission
  • Feedback:
    • One vibration
    • Status LED: Blue light steady on during recording
    • Button LED: Green light turns on when pressed, remains on until pressed again

Function Button 1​

  • Action: Single press
  • Function: Notifies app to enter meeting mode and starts/stops audio transmission
  • Feedback:
    • One vibration
    • Status LED: Blue light steady on during recording
    • Button LED: Green light turns on when pressed, remains on until pressed again

Function Button 2​

  • Action: Single press
  • Function: Notifies app to enter custom mode and starts/stops audio transmission
  • Feedback:
    • One vibration
    • Status LED: Blue light steady on during recording
    • Button LED: Green light turns on when pressed, remains on until pressed again

Custom Button​

  • Action: Single press
  • Function: Switches to the next mode
  • Feedback:
    • One vibration
    • Button LED: Green light on when pressed, off when released

Operational States​

Disconnection​

  • Condition: BLE is connected
  • Trigger: Phone actively disconnects BLE
  • Result:
    • Connection breaks
    • Status LED: Red light flashes every 0.5s, three times

Reconnection​

  • Condition: BLE is disconnected, app initiates reconnection
  • Trigger: Remote Bluetooth is turned on
  • Result:
    • Device automatically reconnects to phone
    • Status LED: Blue light flashes every 0.5s, three times

LED Indicators​

StateLED PatternMeaning
RecordingStatus LED: Steady blueRecording active
DisconnectionStatus LED: Red flashes (3x)BLE disconnected
ReconnectionStatus LED: Blue flashes (3x)Reconnecting
Low BatteryStatus LED: Red flashes (2x)Battery ≤10%
ChargingStatus LED: Steady greenCharging in progress
Full ChargeStatus LED: OffCharging complete

Power Management​

Low Battery Alert​

  • Trigger: Battery ≤10%
  • Reminder:
    • Repeats every minute
    • Voice prompt: "Battery Low"
    • Status LED: Red light flashes every 0.8s, twice

Charging​

  • Interface: USB-C port
  • Status:
    • Charging:
      • One vibration
      • Status LED: Steady green
    • Full: Status LED turns off

Modes of Operation​

Translation Mode 🌍​

  • Real-time voice translation
  • Activated via Translation button

Note-Taking Mode 📝​

  • AI-powered note-taking
  • Activated via AI Chat button

Meeting Mode 👥​

  • Meeting recording and transcription
  • Activated via Function Button 1

Custom Mode ⚙️​

  • Customizable recording mode
  • Activated via Function Button 2

TF Card Recording​

Starting with firmware v1.5.0, the TR01 supports recording directly to an inserted TF card without requiring a Bluetooth connection to your phone.

Requirements​

  • Firmware version 1.5.0 or higher
  • Compatible TF card inserted into the device
  • Device powered on but not connected to Bluetooth

How to Use​

  1. Start Recording:

    • Ensure the device is powered on and Bluetooth is disconnected
    • Double-press the power button to start recording
    • Feedback: Short vibration
    • LED Status: Blue light flashing during recording

  2. Stop Recording:

    • Double-press the power button again
    • Feedback: Short vibration
    • LED Status: Device returns to Bluetooth waiting state
    • Recording will be saved to the TF card

Accessing Recorded Files​

  1. Connect your TR01 to a computer using a USB cable
  2. The device will appear as a USB mass storage device
  3. Browse to access your recorded audio files
  4. Copy files to your computer as needed

Technical Details​

  • Files are saved in standard audio format
  • No special software required to access recordings
  • Device operates like a standard USB flash drive when connected to a computer

Firmware Update​

Keeping your TR01 device updated with the latest firmware ensures optimal performance and access to new features. Follow these steps to update your device's firmware:

Prerequisites​

  • Ensure your device has at least 50% battery charge
  • A WiFi network operating on 2.4GHz frequency band (5GHz is not supported)
  • A stable internet connection

Update Procedure​

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
WiFi Configuration Portal

2. Connect Your Device​

  1. Click "Start Configuration"
  2. When prompted, search for and connect to your TR01 device
Device Connection

3. Transfer WiFi Credentials​

The website will automatically transmit your WiFi credentials to your TR01 device

Transferring WiFi Credentials

4. Enter OTA Update Mode​

  1. Quickly press the pairing button 5 times in succession
  2. Your device will enter OTA (Over-The-Air) update mode

5. Update Status Indicators​

StatusLED IndicatorMeaning
OTA Entry FailedRed light flashes 3 timesCheck if your WiFi is 2.4GHz
OTA In ProgressYellow light flashingUpdate downloading and installing
OTA SuccessfulWhite light flashingFirmware update completed

6. Completion​

Once the white light flashes, your TR01 device has been successfully updated to the latest firmware. The device will automatically restart and be ready for use.

Latest Firmware Features​

Version 1.5.0​

  • TF Card Recording: Record audio directly to TF card without requiring a Bluetooth connection
  • Access recordings by connecting the device to a computer via USB cable
  • Improved audio processing algorithms
  • Various bug fixes and performance improvements

FAQ (Frequently Asked Questions)​

  1. How do I switch between modes?

    • Simply press the corresponding function button for your desired mode.

  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 stop TTS playback?

    • Press the Custom button to stop app TTS playback.

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

    • Make sure your device has firmware v1.5.0 or higher
    • Insert a compatible TF card
    • When Bluetooth is disconnected, double-press the power button to start/stop recording
    • Connect the device to a computer via USB to access recordings

Experimental Features​

  • Some features are only available in the Web-demo version of the app.
  • Web-demo is compatible with Windows, MacOS, and Android (not iOS).
  • Visit here for access.