Ensure the charging cable is completely inserted into both the speaker and the power source. Unsuccessful Bluetooth Pairing
5.0 (Provides a stable connection up to 33 feet or 10 meters) Output Power: 10W – 20W dual acoustic drivers
| Specification | Typical Value | Notes | | :--- | :--- | :--- | | | 3.0, 4.2, or 5.3 | Check your model for precise version | | Output Power | 2 x 5W to 12W | Varies with speaker size | | Battery Capacity | 1,800 mAh to 10,000 mAh | Smaller models: 1,800-3,600 mAh; Larger models: 4,000-10,000 mAh | | Playtime | 4 to 15 hours | Dependent on volume level and battery size | | Frequency Response | 70 Hz - 20 kHz | Can vary by model | | Water Resistance | Splashproof / IPX4 (or higher) | Resists light rain, but not submersion | | Connectivity | Bluetooth, AUX, MicroSD, USB-A | Some models also support FM Radio | | Dimensions (Approx.) | 105 x 105 x 225 mm (Large) / 95 x 90 mm (Mini) | Large models are similar in size to a thermos | | Weight (Approx.) | 620 g to 840 g | Larger models with bigger batteries weigh more |
Insert one end of the 3.5mm AUX cable into the headphone jack of your media device.
6 to 12 hours (Depending heavily on volume levels and audio content) xertmt bluetooth speaker manual
A small LED light (usually red) will illuminate while the device is charging. Once the battery is fully charged, the light will turn off or change color (typically to blue or green).
Is your speaker encountering a ?
The button layout may vary slightly between different Xertmt models, but most share a common set of functions. Look for these icons on the top panel or side of your speaker:
His phone was at 4% battery. The storm outside had knocked out the grid, and the emergency radio was dead. But the Xertmt speaker, fully charged, sat there like a silent promise. He knew it had a hidden feature: it could reverse-charge a phone. The problem was, he’d thrown away the pamphlet-sized the day he got it. Ensure the charging cable is completely inserted into
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A tone will sound, and the speakers will automatically link to each other.
The rubber seal covering the charging port and AUX jack must be pressed completely flush to protect the internal circuitry from water damage. Never expose the speaker to liquids while it is actively charging.
Emergency Power Bank Mode: With the speaker OFF, press and hold the Bluetooth button for 8 seconds. The LED will flash orange. Connect your USB cable. Once the battery is fully charged, the light
: Press and hold for 3 seconds to turn the device ON or OFF. Press once quickly to check the battery status via the LED indicators.
To protect battery lifespan, official JBL Support guidelines advise:
Some Xertmt models include an FM radio tuner.