BOOM-550 - Loudspeaker Steren - Free user manual and instructions
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| Product Type | Portable Bluetooth Speaker |
| Brand | Steren |
| Model | BOOM-550 |
| Bluetooth Version | 5.0 |
| Output Power | 10W RMS |
| Frequency Response | 100 Hz – 20 kHz |
| Signal-to-Noise Ratio | ≥80 dB |
| Battery Capacity | 2000 mAh |
| Battery Life | Up to 8 hours (at 50% volume) |
| Charging Time | Approximately 3 hours |
| Charging Input | USB-C |
| Playback Modes | Bluetooth, USB, microSD, AUX |
| Water Resistance | IPX5 (splash-proof) |
| Wireless Range | Up to 10 m (line-of-sight) |
| Built-in Microphone | Yes, for hands-free calls |
| Dimensions (W×H×D) | Approx. 200 × 68 × 75 mm |
| Weight | Approx. 500 g |
| Material | ABS plastic with fabric grille |
| Care and Cleaning | Wipe with a soft dry cloth; keep ports dry |
| Safety Warnings | Avoid heat sources and water immersion |
| Spare Parts and Repairability | Contact Steren service center for battery replacement |
| Warranty | 1 year limited |
Frequently Asked Questions - BOOM-550 Steren
How do I pair the BOOM-550 with my smartphone?
Turn on the speaker by pressing the power button. The speaker will enter pairing mode automatically (indicated by blinking blue LED). On your smartphone, enable Bluetooth and search for "BOOM-550" in the device list. Tap it to connect. Once paired, the LED turns solid blue.
How do I charge the speaker?
Use the included USB-C cable and plug it into a 5V/1A USB charger. Connect the other end to the speaker's charging port. The LED indicator will show red while charging and turn off or blue when fully charged (see manual for exact behavior). Full charge takes about 3 hours.
Can I use the speaker while it is charging?
Yes, the BOOM-550 can be used during charging. However, the charging time will be longer if the speaker is playing at high volume. It is recommended to use a quality USB charger to avoid overheating.
Is the speaker waterproof?
The BOOM-550 has an IPX5 rating, meaning it is splash-resistant and can withstand light rain or water splashes. It is not recommended to immerse it in water or use it in heavy rain. Dry the speaker thoroughly after exposure.
How can I play music via AUX cable?
Connect one end of a 3.5mm AUX cable to the speaker's AUX input and the other to your device. Press the Mode button to switch to AUX mode. The speaker will automatically play audio from the connected device.
What should I do if there is no sound from the speaker?
First, check if the speaker is powered on and the volume is turned up on both the speaker and the connected device. Ensure the device is connected via Bluetooth or properly plugged in. If using Bluetooth, try rebooting the speaker or clearing the pairing list. If the issue persists, reset the speaker (press and hold the Mode button for 5 seconds).
Can I take phone calls with the BOOM-550?
Yes, the BOOM-550 has a built-in microphone. When a call comes in, press the call/answer button to accept. Press it again to end the call. The audio will be routed through the speaker.
How do I reset the speaker to factory defaults?
To reset the speaker, press and hold the Mode and Volume Up buttons simultaneously for about 5 seconds until you hear a beep. This will clear pairing information and restore default settings. This feature is useful when experiencing connectivity issues.
What is the battery life on a full charge?
The built-in 2000 mAh battery provides up to 8 hours of continuous playback at moderate volume (50%). Higher volume and heavy bass may reduce this duration. To extend battery life, lower the volume and disconnect the AUX cable when not in use.
How should I clean and maintain the speaker?
Disconnect the speaker from power and any devices. Wipe the exterior surfaces with a soft, slightly damp cloth. Do not use any abrasive cleaners or immerse the speaker in water. Also, clean the grille gently to avoid pushing dust into the speaker. Avoid storing in dusty or humid places.
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USER MANUAL BOOM-550 Steren
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Product information
Brand : Steren
Model : BOOM-550
Category : Loudspeaker