TREBLAB X4 Wireless Earbuds User Manual
What's in the Box
- TREBLAB X4 earphones
- Charging case
- TREBLAB logo sticker
- User's manual & quick start guide
- Silicone ear-tips (XL, L, M, S, XS, XXS)
- Charging cable
- Cleaning set
Buttons and Parts
Earbud Components: MULTI-FUNCTION BUTTON (MFB), MIC, STATE INDICATOR, VOLUME +, VOLUME -, CHARGING CONTACTS.
Charging Case Components: CHARGING PORT (TYPE-C), CHARGING PINS, CASE BATTERY LEVEL INDICATOR, POWER BANK PORT (TYPE-A).
Functions and Operations
| Function | Operation |
|---|---|
| Power on | Take the earbuds out of the case or press and hold the MFB of both earbuds for 3 seconds. |
| Power off | Put the earbuds back into the case and close it or press and hold the MFB of both earbuds for 3 seconds. |
| Pause/Play | Click the MFB on either earbud. |
| Volume + | Click the VOLUME + button on either earbud. |
| Volume - | Click the VOLUME - button on either earbud. |
| Next track | Press and hold the VOLUME + button on either earbud for 2 seconds. |
| Previous track | Press and hold the VOLUME - button on either earbud for 2 seconds. |
| Voice assistant activation | Double-press the MFB on either earbud. |
| Answer a phone call | Click the MFB button on either earbud during the incoming call. |
| Reject a phone call | Press and hold the MFB on either earbud for 2 seconds during the incoming call. |
| Hang up | Click the MFB on either earbud when on a call. |
| Gaming mode | Triple-press the MFB of either earbud. |
| Disconnect | Press and hold the VOLUME + and VOLUME - buttons simultaneously on either earbud for 3 seconds when the earbuds are connected to the source device. |
| Factory reset | Press and hold the VOLUME + and VOLUME - buttons simultaneously on either earbud for 3 seconds when the earbuds are not connected to the source device. |
How to Ensure a Proper Fit
Ear-tips in different sizes: The TREBLAB X4 comes with silicone ear-tips in sizes XXS, XS, S, M, L, and XL. Using the appropriate-sized ear-tips is critical to isolate external noise and achieve a snug and secure fit. Try on one ear-tip at a time to find the best fit for each ear.
To achieve the best possible fitment, gently push the earbuds into your ears and adjust the headset until it fits comfortably. You should notice a drop in ambient noise when the ear-tip has been placed correctly. With a proper fit, you'll notice more range when listening to music.
To Change the Silicone Ear-tips
- Turn out the flange of the ear-tip.
- Twist and firmly push the ear-tip's stem onto the earbud nozzle.
- Turn out the flange of the ear-tip back.
Charging
Important Notes:
- The X4's case is not compatible with 90W+ chargers.
- Remove protective stickers from the charging contacts of both earbuds prior to charging.
- After use and before charging, wipe the earbuds carefully to remove any moisture from the charging contacts.
To charge the case: Connect the supplied charging cable to the Type-C charging port on the back of the case and the other side to a power source. The case battery level indicator will show the current battery level. It takes about 3 hours to fully charge the case. Use a 5V DC, 0.5 - 1A adapter or charger.
To charge the earbuds with the charging case: When the earbuds' battery is running low, place them into the slots inside the charging case and close the lid. The earbuds will turn off and start charging. The earbuds charging indicators on the case will show the charging status. It takes about 2 hours to charge the earbuds.
Power Bank Mode: The TREBLAB X4's charging case can be used as a power bank. Connect your device's charging cable to the USB Type-A power bank port on the back of the case. The case battery level indicator will light up showing the current battery percentage. Note: There is no indication signal when the connected device is fully charged; monitor your device's battery indicator.
Setting Up Your TREBLAB X4
To turn on the earbuds: 1. Open the case lid and take the earbuds out; they will turn on automatically. 2. Alternatively, press and hold the MFB of both earbuds for 3 seconds. You will hear sound prompts indicating they are on and ready for pairing. State indicators will light up blue, then flash blue/red on one earbud.
To turn off the earbuds: 1. Put both earbuds into the charging case slots and close the lid. 2. Alternatively, press and hold the MFB of both earbuds for 3 seconds. You will hear a sound prompt, and the red state indicators will blink 3 times before turning off.
Pairing
You can pair the X4 earbuds with your device either together or separately. Using only one earbud at a time can extend playtime.
To pair both earbuds: 1. Open the case lid and take the earbuds out. State indicators will light up blue, then flash blue/red on one earbud. 2. Activate wireless communication on your smart device, scan/search for TREBLAB X4, and click CONNECT. 3. If prompted, select Yes. 4. You will hear a sound prompt indicating connection; state indicators will go off.
The earbuds will try to reconnect with the last connected device. You can save up to 6 connected devices.
To pair one earbud: 1. Open the case lid and take one earbud out. The blue state indicator will light up, then flash blue/red. 2. Activate wireless communication on your smart device, scan/search for TREBLAB X4, and click CONNECT. 3. If prompted, select Yes. 4. You will hear a sound prompt indicating connection; the state indicator will go off.
Audio Playback
To pause and resume playback, click the MFB on either earbud.
To change tracks, press and hold the VOLUME + button for the next track and the VOLUME - button for the previous track.
To adjust volume, click VOLUME + to increase and VOLUME - to decrease.
Phone Calls Management
The TREBLAB X4 can be used for calls. Audio playback pauses during calls.
- To answer a call: Click the MFB on either earbud during an incoming call.
- To reject a call: Press and hold the MFB on either earbud for 2 seconds during an incoming call.
- To end a call: Click the MFB on either earbud when on a call.
Gaming Mode
TREBLAB X4 earbuds support gaming mode to reduce audio latency up to 60ms for better video/audio synchronization. To enable, triple-press the MFB of either earbud; you will hear an ascending sound prompt. To disable, triple-press the MFB again; you will hear a descending sound prompt. Note: Connection range is shorter in gaming mode; disable it if experiencing connection issues.
Voice Assistants Support
TREBLAB X4 earphones are compatible with most voice assistants. To use a voice assistant, double-press the MFB of either earbud.
Reset to Factory Settings
To reset the X4 earbuds to factory defaults, disconnect them from the source device. Press and hold the VOLUME + and VOLUME - buttons simultaneously on either earbud for 3 seconds. You will hear a sound prompt, and the earbuds will enter pairing mode.
Cleaning
It is recommended to clean the earbuds once every two weeks to prevent earwax buildup on the protective screen or ear-tip opening.
Materials needed: Cotton swab, Eyelash brush or alike, Alcohol.
Cleaning procedure: 1. Remove the silicone ear-tip. 2. Soak a cotton swab in alcohol and clean the ear-tip opening. 3. Repeat for the other ear-tip. 4. Soak an eyelash brush in alcohol. 5. Clean the protective screen on the earbud nozzle with a forward and backward motion. 6. Repeat for the other earbud's nozzle. 7. Let ear-tips and nozzles dry before reattaching.
Troubleshooting
| Problem | Solution |
|---|---|
| Can't turn the earbuds on | Ensure the earbuds are charged. |
| Earbuds do not charge | Check for and remove protective stickers on charging contacts. Clean charging contacts with a slightly damp cotton swab (using alcohol or cleaning fluid). Ensure earbud slots in the case are free of debris. Try a different Type-C cable, power source, or adapter. |
| Device doesn't find TREBLAB X4 | Ensure earbuds are not paired with another device. If in pairing mode (flashing blue/red) but not found, restart your device and the earbuds. Reset earbuds to factory settings and try pairing again. |
| Frequent disconnection and noise | Ensure the distance between your device and earbuds is less than 33 feet / 10 meters. Ensure no objects are blocking the signal. Earbuds turn off automatically after 15 minutes of disconnection to save power. |
| Can't connect the earbuds to the device | Ensure earbuds are not paired with another device. Ensure the distance is less than 30 feet / 10 meters. Disconnect and remove X4 from your device's pairing list. Reset earbuds to factory settings and try pairing again. |
| I cannot find a wireless driver for my laptop | Ensure your laptop supports wireless connection. If not, use an external wireless USB adapter. Consult your laptop manufacturer for details. |
Safety Rules
- Never disassemble or modify the X4; doing so may cause malfunction or make it combustible, voiding the warranty.
- Do not charge the earbuds when wet; dry them first.
- Avoid exposing the TREBLAB X4 to extreme temperatures (below 37°F / 3°C or above 112°F / 45°C) as this can deform components and reduce battery life.
- Avoid putting the device's LED lights close to the eyes of children or animals.
- Do not use the X4 during thunderstorms, as they can cause malfunction and increase the risk of electric shock.
FCC Statements
FCC Compliance Statement - Part 15
This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. Any unauthorized modifications could void the user's authority to operate the equipment.
FCC Interference Statement - Part 15
This equipment has been tested and found to comply with Class B digital device limits per Part 15 of the FCC Rules. These limits provide reasonable protection against harmful interference in residential installations. The equipment generates, uses, and can radiate radio frequency energy. If not installed and used per instructions, it may cause harmful interference to radio communications. There is no guarantee that interference will not occur in a particular installation. If interference occurs, try correcting it by: Reorienting or relocating the receiving antenna; Increasing the separation between the equipment and receiver; Consulting a dealer or experienced radio/TV technician.
RF Exposure Information
The device has been evaluated to meet general RF exposure requirements and can be used in portable exposure conditions without restriction.
Battery Information
- Your device is powered by rechargeable batteries.
- Unplug the charging case from the electrical plug when not in use.
- A fully charged battery will lose its charge over time if left unused.
- Fully charge your earbuds twice a month to ensure battery integrity.
- Do not leave the device or charging case in extreme hot or cold places (e.g., a closed car) as this will reduce battery capacity and life.
- Do not expose batteries to fire, as they may explode. Batteries may also explode if damaged.
Recycling
Damaged or broken earphones can be recycled to help keep the planet clean. For recycling options:
- US: https://www.call2recycle.org, https://search.earth911.com, https://recyclenation.com/find, https://www.cta.tech/Consumer-Resources/Greener-Gadgets
- Canada: https://thinkreuse.net, https://www.call2recycle.ca
- UK: https://www.recycle-more.co.uk/, https://www.recyclenow.com/local-recycling
Specifications
- Speaker unit: Ø10mm, 32Ω
- Charging port: USB Type-C
- Power bank port: USB Type-A
- Dimensions: Earbuds: 48 x 41 x 27.5mm / 1.88 x 1.61 x 1.08 in; Charging Case: 98.5 x 61.8 x 40.2mm / 3.87 x 2.43 x 1.58in
- Weight: Earbuds: 8.3g / 0.29 oz / 0.02 lbs; Case: 108.1g / 3.81 oz / 0.24 lbs
Thank You
TREBLAB appreciates your choice of TREBLAB wireless earphones. We hope you enjoy the sound and usability of the TREBLAB X4. For any questions or if you are not completely satisfied, please contact TREBLAB at http://treblab.com/contact_us.
Warranty Information
1 YEAR FULL WARRANTY: Parts and Labor Warranty. Please visit www.treblab.com to register your product. Designed by Productech in the U.S.
Warning: This product can expose you to Bisphenol A, known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
