BM 661USB2 - Loudspeaker Karma - Free user manual and instructions
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| Product Type | Portable Bluetooth Loudspeaker |
| Brand | Karma |
| Model | BM 661USB2 |
| Dimensions (W x H x D) | 330 x 180 x 210 mm |
| Weight | 1.4 kg |
| Power Supply | Built-in rechargeable battery, DC 5V via USB |
| Battery Life | Up to 8 hours at moderate volume |
| Charging Time | Approximately 3 hours |
| Output Power | 20W RMS |
| Frequency Response | 80 Hz - 20 kHz |
| Drivers | 2x 63 mm full-range drivers + passive radiator |
| Connectivity | Bluetooth 5.0, USB port, AUX-in, FM radio |
| Playback Modes | Bluetooth, USB, AUX, FM radio |
| Controls | Power, volume, play/pause, mode, track skip |
| Display | LED indicator for charging and Bluetooth status |
| Microphone | Built-in for hands-free calls |
| Water Resistance | IPX4 splash-proof |
| Operating Range | Up to 10 meters (Bluetooth) |
| Maintenance and Cleaning | Wipe with a soft, dry cloth; do not use abrasive cleaners |
| Safety Warnings | Do not expose to extreme temperatures or moisture; place on a stable surface |
| Spare Parts and Repairability | Contact authorized Karma service centers for repairs; user-replaceable battery not recommended |
| Package Contents | Loudspeaker, USB charging cable, AUX cable, user manual |
Frequently Asked Questions - BM 661USB2 Karma
How do I pair my phone with the BM 661USB2 via Bluetooth?
Turn on the speaker and press the Bluetooth button until the LED flashes. On your phone, enable Bluetooth and select Karma BM 661USB2 from the list. The speaker will confirm the pairing with a tone.
Can I play music from a USB stick?
Yes, insert a USB drive into the USB port. The speaker will automatically switch to USB mode and play supported audio files. Use the mode button to switch from Bluetooth to USB.
How long does the battery last and how do I charge it?
The built-in battery provides up to 8 hours of playback at moderate volume. Charge the speaker using the USB charging cable connected to a 5V adapter. The LED indicator turns red while charging and becomes green when full.
What should I do if there is no sound from the speaker?
Check the volume level on both the speaker and your device. Ensure the correct input mode is selected (Bluetooth, USB, AUX, or FM). If using Bluetooth, confirm the devices are paired. Restart the speaker if necessary.
Is the BM 661USB2 waterproof?
The speaker has an IPX4 splash-proof rating, meaning it can handle light splashes and rain, but it should not be submerged in water. Avoid exposing it to heavy moisture.
Can I use the speaker for hands-free calls?
Yes, the speaker has a built-in microphone. When connected via Bluetooth, you can answer and end calls directly from the speaker. The sound will be routed through the speaker.
How do I set and store FM radio stations?
Press the Mode button to switch to FM radio. Use the next/previous track buttons to search for stations automatically. To store a favorite station, hold the play/pause button until the channel is saved.
What is the effective Bluetooth range?
The Bluetooth 5.0 connection works up to 10 meters (33 feet) in open space. Walls, furniture, and other obstacles can reduce the range, so try to keep the device close to the speaker.
How do I clean and maintain the speaker?
Use a soft, dry cloth to wipe the exterior. Do not use water, chemicals, or abrasive materials. Remove dust from the ports with a soft brush. Keep the speaker away from direct sunlight and extreme temperatures.
What accessories are included in the box?
The package comes with the Karma BM 661USB2 speaker, a USB charging cable, an AUX audio cable, and a user manual. Some retailers may include a remote control or warranty card.
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USER MANUAL BM 661USB2 Karma
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Product information
Brand : Karma
Model : BM 661USB2
Category : Loudspeaker