Xertmt Bluetooth Speaker Manual Upd Jun 2026
If you experience audio stuttering, pairing failures, or charging issues, use these standard troubleshooting techniques. Potential Cause Completely drained battery Connect to a power source for 30 minutes and try again. Bluetooth pairing fails Interference or old cache data
Locate a small pinhole near the charging ports (or press and hold the and Volume + buttons simultaneously for 8 seconds). The speaker will shut down immediately.
If your XertMT speaker is acting strangely (won’t pair, frozen, or distorted sound), perform a factory reset. xertmt bluetooth speaker manual
You will hear a tone indicating a successful connection.
| 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 | If you experience audio stuttering, pairing failures, or
| Problem | Solution | | :--- | :--- | | Cannot pair / No sound | 1. Forget the device on your phone and re-pair. 2. Ensure speaker is not already connected to another device. 3. Turn speaker off/on. | | Sound cuts out / Distorted | 1. Keep speaker within 10 meters (33 ft) of the source. 2. Remove obstacles (walls). 3. Lower the volume on both the speaker and phone. | | Won't turn on | Charge the battery for at least 30 minutes. | | Echo during calls | Reduce the volume or move closer to the speaker. |
Press once to enter pairing mode. Press and hold to disconnect the current device. The speaker will shut down immediately
The "XERTMT" is a high-performance Bluetooth speaker that shares a design language—and likely its core manual instructions—with the well-known series . These speakers are built for power and portability, featuring dual woofers, long battery life, and rugged, splashproof exteriors. Quick Setup Guide
Never charge the speaker in extreme cold (below 32°F/0°C) or extreme heat (above 113°F/45°C).
| Light Status | Meaning | Action Required | | :--- | :--- | :--- | | | Pairing mode | Look for device in Bluetooth list. | | Slow pulsing blue | Connected to Bluetooth | Normal operation. | | Solid red | Charging | Leave plugged in. | | Red off | Fully charged | Unplug from power. | | Flashing red / Blue | Battery low (<10%) | Charge immediately. | | Solid green/purple | AUX or MicroSD mode | No action needed. | | Flashing red 3x then off | Factory reset complete | Re-pair your device. |
Keep the rubber port cover tightly sealed when using the speaker near water or dust to maintain its weatherproofing.