DK-M15 - Headphones SDI Technologies - Free user manual and instructions
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| Product Type | Over-Ear Headphones |
| Brand | SDI Technologies |
| Model | DK-M15 |
| Dimensions (Approx.) | 7.5 x 6.3 x 3.1 inches |
| Weight (Approx.) | 5.6 oz (160 g) |
| Power Source | 2 AAA batteries (not included) |
| Battery Life | Up to 20 hours |
| Connectivity | 3.5mm audio cable (included), Bluetooth 5.0 |
| Driver Size | 40mm |
| Frequency Response | 20Hz - 20kHz |
| Impedance | 32 ohms |
| Sensitivity | 105 dB |
| Controls | Volume, track skip, play/pause, power on/off |
| Microphone | Yes, built-in for hands-free calls |
| Compatibility | Most Bluetooth devices (smartphones, tablets, computers) |
| Charging Time | N/A (battery powered) |
| Pad Material | Leatherette |
| Foldable Design | Yes, for portability |
| Included Accessories | 3.5mm audio cable, user manual |
| Cleaning Instructions | Wipe with dry cloth; do not use liquids or abrasives |
| Safety Warnings | Keep away from water and heat sources; do not disassemble |
| Spare Parts Availability | Contact manufacturer for ear pads and cables |
Frequently Asked Questions - DK-M15 SDI Technologies
How do I pair the DK-M15 headphones with my device?
Turn on the headphones using the power button. Activate Bluetooth on your device and select DK-M15 from the list. If prompted, confirm pairing. The LED will flash blue when connected.
What should I do if the headphones don't turn on?
Check that the batteries are inserted correctly (2 AAA) and are fresh. Replace with new batteries if necessary. Ensure the power switch is slid to the ON position.
Can I use the headphones while they are charging?
This model is not rechargeable; it operates on disposable AAA batteries. You cannot use them while charging.
How do I clean the ear pads?
Wipe the ear pads gently with a dry, soft cloth. For stubborn dirt, lightly dampen the cloth with water and wring it out well. Do not use alcohol or cleaning agents.
The sound is only coming from one side. What's wrong?
First, check the audio cable connection. If using Bluetooth, ensure both earcups are recognized. Test with another device. If issue persists, the driver may be defective; contact SDI Technologies support.
Are the headphones compatible with my computer?
Yes, if your computer supports Bluetooth or has a 3.5mm audio jack. For wired connection, plug the cable into the headphone jack. For Bluetooth, pair as with any other device.
How long do the batteries last?
Battery life can vary but typically lasts up to 20 hours with normal usage. Actual duration depends on volume levels and usage patterns.
What should I do if the microphone is not working?
Ensure the headphones are correctly paired and selected as both audio output and input device on your phone or computer. Check that the mute function is off. If using wired, the cable must support microphone.
Can I replace the ear pads?
Yes, ear pads are replaceable. Contact SDI Technologies customer service to order compatible pads or check online retailers.
Is there a warranty?
SDI Technologies typically offers a 1-year limited warranty against defects in materials and workmanship. Refer to the user manual for full warranty details and registration.
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USER MANUAL DK-M15 SDI Technologies
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Product information
Brand : SDI Technologies
Model : DK-M15
Category : Headphones