Welcome to the official user manual for the RECOLX Fit 2 smart recording AI earbuds. This comprehensive guide covers everything from hardware controls to advanced AI transcription and real-time translation features.

1. App Download & Account Registration & Device Overview

The RECOLX App is your central hub for device binding, OTA updates, AI transcription, translations, and file management.

How to Download:

Search for 'RECOLX' in the App Store or Google Play to download the RECCDLX app.

• Registration & Login:

  • Open the app or visit the official web portal at https://app.recolx.ai/login.

  • Go to the login page and select login method.

  • You can register a new account via Email, or utilize quick third-party authentication via Google Account or Apple ID.

• Troubleshooting: If the earbuds fail to sync or connect with the app, please uninstall and download the latest version from your mobile app store.

Device Overview

1. Earbud Indicator: Show power, pairing and charging status 

2. Microphone: For voice input and phone calls 

3. Touch Control: Control playback, volume and calls 

4. Speaker: Audio output 

5. Charging Contacts: Power connection for charging 

6. Multi-Function Button: Pairing, reset and power on/off 

7. Case Indicator Light: Display charging status of charging case

Put on the earbuds

1. Take out the earbuds and place them above your ears. Rotate them along your outer ears to the appropriate position, then insert the ear tips into your ears.
2. Gently press the ear tips and rotate the ear hooks back and forth until they fully conform to your outer ears to complete the wearing process.

2. Hardware Operation & Device Binding

2.1 Power On, Manual Pairing, and Bluetooth Connection

Keep the earbuds and your smartphone within a 1-meter radius during the initial pairing process.
 

Connect via system bluetooth preparation

• Enable Bluetooth in the phone's system setting;
• Disconnect other Bluetooth devices to avoid interference.

1. Automatic Power On: Open the charging case and remove the earbuds; they will turn on automatically, you will hear an audible voice announcement saying "Power on" through the earbuds.

2. Earbud-to-Earbud Pairing (Auto-Paired): The left and right earbuds are paired automatically by default before leaving the factory. Simply remove them from the case, and the main earbud will flash red and blue alternately, signifying that it has entered phone pairing mode. 

3. Phone Bluetooth Connection: Turn on Bluetooth on your smartphone, locate the available device list, and select "Recolx Fit 2" (or the corresponding actual product name) to connect.

4. Connection Successful: Once connected, you will hear an audible voice announcement saying "Connected" through the earbuds, the earbud LED indicators will turn off. 

Auto-Reconnect & Reset: 
Automatic Reconnection: Every time you open the charging case, the earbuds will automatically reconnect to the last paired device, provided your pairing history has not been cleared.

• Power Off: Placing the earbuds back into the charging case and closing the lid turns them off. They will also automatically power down after 5 minutes of no active Bluetooth connection.

• Reset & Re-pair: Open the charging case. Leave the earbuds inside and hold the case button for 3 seconds to clear pairing history and enter pairing mode.

• Note: Manually entering pairing mode will clear all existing Bluetooth connections. Please use this feature with caution.

2.2 App Device Pairing and Binding

1. Complete the phone-level Bluetooth pairing outlined in section 2.1 first.

2. Launch the RECOLX App and log in.

3. Tap the [My Recolx Device] / [Connect] icon in the upper-left corner of the homepage to enter device management.

4. The app will scan for available nearby hardware. Click your device to bind. Once successfully bound, the app will display "Connection successful" along with real-time battery status.

5. Daily Use: For future sessions, simply open the app while wearing your connected earbuds, and they will connect automatically.

2.3 Device Unbinding

Unbinding dissociates the hardware from your current RECOLX account, allowing it to be paired with another account. When unpairing the device, both the phone's system-level Bluetooth connection and the App connection will be disconnected simultaneously.

⚠️ Important Note: Membership benefits and service quotas (such as Pro minutes) are tied directly to the user account. Unbinding the hardware will not transfer, refund, or alter any previously claimed account perks.

🎧 2.4 Earbud Equalizer (EQ) Settings

Optimize your listening experience. Whether you are focusing on a business meeting, jumping into an international call, or winding down with your favorite music, the RECOLX App allows you to fine-tune your audio settings perfectly.

When the earbuds are connected, tap Equalizer in the device details page to customize your sound preferences.

Flow：
Connected earbuds → Device details → Scroll to bottom → Equalizer → EQ settings

Equalizer
Clear & balanced sound for music, podcasts, and recordings.
 

Spatial Audio
More immersive sound for movies, games, and live content.

2.5 Essential LED & Operations Reference

The earbuds feature intelligent voice prompts to guide you through different device statuses and volume thresholds.

2.6 Battery & Charging Status (Earbuds & Case)

3. App: Main Interface & Core Features Guide

🗺️ App Navigation & Default Home Tab Settings

• Initial Connection: Once your earbuds are successfully connected to the app, you will be directed straight to the [Files] tab (the folder icon on the bottom left) by default.

• Accessing Core Features: To switch to the main dashboard (Core Features), simply tap the [RECOLX Logo Button] located in the center of the bottom navigation bar.

• Customizing Your Home Screen: If you want to change your default landing page when the app opens, you can customize your preferences:

  1. Tap the [Account Center] icon (the profile avatar) on the bottom right.

  2. Select [Preference].

  3. Choose your desired view to set your Default Home Tab.

🌐 Global Language Support

All translation and interpretation features in the RECOLX App comprehensively support 145 languages, including various regional accents and dialects (e.g., English, Chinese, Japanese, Korean, Russian, and more) to ensure seamless global communication.
 

📥 3.5 Import Files (Audio & Video Transcription)

Best for transcribing pre-recorded media files. Easily import your lectures, interviews, meetings, or video clips directly from your smartphone's local storage or photo album, and let the RECOLX App handle the rest.

💡 Quick Tips:

• Import Verified Files: The app officially supports and verifies the following formats: "mp3", "wav", "mp4", "mov", "m4a", "aac".

• Hardware Setup: Ensure your Recolx earbuds are connected to your mobile device if you wish to listen to the original media audio privately while monitoring the text output.

📝 Step-by-Step Instructions

• Step 1: On the feature selection interface, tap the [Audio and video transcription] card.

• Step 2: A pop-up menu will appear at the bottom of the screen. Choose your file source based on where your media is saved:

  • 📁 [Files]: Tap this to browse and import audio or video files from your smartphone's local document storage, iCloud, or cloud drives.

  • 🖼️ [Select from album]: Tap this to open your phone's system gallery/photo album and directly import video recordings or voice memos saved in your camera roll.

• Step 3: Once the file is selected, the corresponding audio file will be imported and automatically saved to your recording file list. 
  

💳 3.7 RECOLX Membership & Quota Usage Rules

• Free Features:

  • Pure Live Recording: Using the app as a standard voice recorder without text processing is completely free.

  • Basic Earbud Features: Most standard real-time transcription features on the earbud function page DO NOT require a PRO membership (however, they will still consume your available transcription minute quota).

• 💎 Paid & Premium Features (PRO Membership):

  • Full Speech-to-Text Processing: Access to high-accuracy, long-duration live transcription and file uploads.

  • Comprehensive File Export: Unlocked capability to export complete, polished text files (TXT/PDF/Docx) and session summaries.

  • Advanced AI Templates & Agent Analyses: Full access to specialized AI Agents for deep-dive conversation analysis, meeting minutes extraction, and custom templates.

  • ✨ Simultaneous Summary: Exclusive ability to generate a structured AI summary concurrently in real-time while the live transcription is still running.

  • Premium Multilingual Engine: Seamless real-time processing and translation across 145+ supported languages and bilingual dual-row subtitles.

📊 Hardware Quotas & PRO Membership Rules

To provide you with the best experience, RECOLX offers a combination of Hardware-Bound Minutes and Premium PRO Subscription Quotas:

• 🎁 Device Activation Gift: When you bind your Recolx hardware device for the first time, you will automatically receive a 3-Month Free Trial of our PRO Membership.

• 🔋 Total Transcription Quota (First 3 Months): Upon binding, you will have a total of 1,800 transcription minutes available to use:

  • Device Quotas: 600 minutes (permanently tied to your hardware device).

  • PRO Bonus Quotas: 1,200 extra minutes (provided by the 3-month complimentary PRO membership).

⚠️ Crucial Notices on Quota Depletion & Limitations

• No Remaining Quota = No Live Transcription: > Please note that speech-to-text processing is heavily quota-dependent. If your total remaining transcription minutes reach 0 (zero), the standard real-time transcription feature will no longer function, even for basic earbud features. You will need to purchase additional minute packs or renew your subscription to resume transcription.

• 📞 Call Transcribing & Call Translation (Double Consumption): > As these features process dual-audio streams (both your voice and the caller's voice simultaneously), they will consume double the standard minute quota from your remaining balance (e.g., a 10-minute phone call will deduct 20 minutes from your quota).

3.8 Tips for Maximum Accuracy

• Always record in quiet environments to minimize ambient background noise.

• Utilize custom AI templates to set specialized rules (e.g., automatically filtering out filler words or using contextual prompts to fix homophones).

4. Storage, File Synchronization & Management

4.1 Audio Storage Mechanism

Upon exiting the current page after completing operations within the core features, the file will be automatically saved to the recording file list.

• Local Storage Priority: By default, your recording files are securely saved directly in the local storage of your smartphone. You can access, play, or delete them offline at any time.

• Cloud Processing: When using cloud-based transcription or AI analysis, audio data is temporarily transmitted to our secure cloud servers. To protect your privacy, this data is not stored permanently on the servers (unless Cloud Sync is explicitly turned on) and will be completely wiped within a reasonable timeframe.

• Cloud Sync (Optional): To back up files, go to [Account Center] ➜ [Cloud]. Here you can toggle Private Cloud Sync on/off or permanently wipe all backed-up data. Warning: Cloud deletion is permanent and cannot be undone.

4.2 Managing Local Audio

Use the app's file list to view, import, transcribe, move, or export your recordings. When your smartphone or device storage runs low, you can manage and permanently delete local audio files via the mobile app or the web portal.

1. Choose a file source: Sync an existing hardware recording, complete a live session to auto-save, or tap [Import File] to upload compatible audio/video files from your phone's native file manager.

2. Select the file from your app list and tap [Transcribe].

3. Transcription Settings: Set the spoken language, turn on speaker diarization, or activate simultaneous summarization.

   • Speaker Diarization: Check [Diarization] to let the system automatically detect, separate, and label different speakers.

   • Simultaneous Summary: Check [Simultaneous Summary] to generate an AI summary concurrently with your text transcript. (Note: This feature is exclusive to PRO members to guarantee maximum accuracy).

This section can directly reference the Recolx APP feature introductions.

⚠️ Crucial Product Logic Notice: > Please note that recordings from the Face-to-Face Translation scenario CANNOT be re-transcribed. Because these sessions inherently contain two different languages, running them through file re-transcription will fail to process correctly.

5. Device Control Guide (Gesture Touch Matrix)

The touch-sensitive multi-function buttons (MFB) are located on the stems/sides of the earbuds.

6. Battery Charging & Maintenance

The RECOLX Fit 2 utilizes high-performance polymer lithium-ion batteries.

6.1 Charging Instructions

⚠️ Prerequisite: Ensure both earbuds and the USB-C charging port are completely dry and free of sweat before charging.

1. Place the earbuds securely into the charging slots and close the lid.

2. Connect the included Type-C charging cable to a certified safety-compliant 5V, 1A wall adapter/charger or directly into a computer USB port.

3. The power indicator will illuminate to show charging status.

4. Once charging is complete, disconnect the power source first before removing the cable from the case.

6.2 Battery Safety Precautions

• Do not allow children to handle charging operations unsupervised. Keep the device out of reach of children while charging.

• Disconnect the charger promptly once the battery is fully charged; avoid leaving it plugged in for extended periods.

• Do not attempt to disassemble the built-in battery yourself.

• The included charging cable is optimized specifically for this product; do not use it on incompatible external hardware.

7. Troubleshooting & Firmware Updates

7.1 Abnormal Hard Reset Procedure

If the earbuds fail to pair, exhibit connection dropping, or experience unknown system freezes, follow these reset steps:

1. Disconnect the earbuds from your phone's Bluetooth menu.

2. While the earbuds are out of the case and disconnected, double-click and then immediately long-press the MFB for 2 seconds to force power them off.

3. Place them back into the charging case and close the lid, then open the case again. The earbuds will automatically reboot, execute self-pairing, and be ready to connect fresh to your mobile device.

7.2 Over-The-Air (OTA) Firmware Updates

When your earbuds are connected to the app, you will receive a push notification when a new firmware patch is released.

• To update, place the earbuds inside the charging case and leave the case lid open.

• Ensure your phone has a stable internet connection and keep the app running until the update progress bar hits 100%. Do not wear or use the earbuds during an active update.

8. Hardware Specifications

Specifications are subject to engineering changes without prior notice.

• Power Input: 5V $\dots$ 1A

• Power Output: 5V $\dots$ 0.2A

• Battery Capacity: 400mAh (Charging Case)

• Charging Time: Earbuds: < 1 Hour; Charging Case: 2 Hours; Combined Case + Earbuds: 2.5 Hours

• Frequency Range: 20 Hz – 20 kHz

• Rated Power: 10mW

• Bluetooth Version: BLE 5.0

• Storage & Operating Environment: * Store in a dry, well-ventilated room away from fire, high heat, and corrosive materials.

  • If stored long-term, recharge the product once every 3 months to preserve battery health.

  • Operating Temperature: 0°C to 40°C

  • Storage Temperature: -10°C to 45°C

  • Operating/Storage Humidity: < 70% RH

9. Maintenance, Cleanliness & Legal Compliance

91.1 Cleaning Protocols

After every use, wipe the exterior of the earbuds with a soft, clean, dry cloth or a specialized detail brush. Pay extra attention to the metallic charging contacts; clean them gently with a dry cotton swab to prevent sweat or oil accumulation from causing charging failures or power-off issues.

9.2 Legal Notice & Compliance

• Please ensure you use all recording and translation functions in strict compliance with your local laws and legal regulations.

• In many global regions, recording audio or conversations requires the explicit, prior consent of all participants.

• RECOLX assumes no legal liability for any unauthorized, non-compliant, or illegal recording activities conducted by the user.

10. Global Customer Service Information

If you encounter any operational difficulties or hardware anomalies, feel free to contact our dedicated support team:

• Official Support Email: support@recolx.ai

• Official Website: https://recolx.ai

• Service Commitment: Monday to Friday; our support team will respond to all inquiries within 12 hours.