NBH-03R - Headphones Necnon - Free user manual and instructions
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| Brand | Necnon |
| Model | NBH-03R |
| Product Type | Wireless On-Ear Headphones |
| Connectivity | Bluetooth 5.0 |
| Wireless Range | Up to 10 meters (33 ft) |
| Driver Diameter | 40 mm |
| Frequency Response | 20 Hz – 20 kHz |
| Impedance | 32 Ω ± 15% |
| Built-in Microphone | Yes, with noise reduction |
| Controls | Multifunction button, volume +/-, play/pause, call management |
| Foldable Design | Yes, for easy portability |
| Ear Cushion Material | Protein leather with breathable memory foam |
| Headband Cushioning | Adjustable and padded for comfort |
| Battery Type | Built-in rechargeable lithium-ion (300 mAh) |
| Playback Time | Up to 15 hours at 50% volume |
| Charging Time | Approx. 2 hours |
| Charging Interface | USB-C |
| Standby Time | Up to 180 hours |
| Weight | Approx. 185 grams |
| Dimensions (W x H x D) | 175 x 160 x 45 mm (folded: 75 x 160 x 45 mm) |
| Cleaning & Maintenance | Wipe with a soft dry cloth; do not use solvents |
| Safety Precautions | Do not expose to water, heat, or direct sunlight; do not disassemble |
| Spare Parts & Repairability | Replacement ear cushions and USB-C cables available from Necnon |
| Warranty | 1-year limited warranty (check with retailer) |
Frequently Asked Questions - NBH-03R Necnon
How do I pair the NBH-03R headphones with my device?
To pair, press and hold the power button for about 5 seconds until the LED indicator flashes alternately red and blue. Activate Bluetooth on your device and select "NBH-03R" from the list. The headphones will connect automatically once paired.
How do I reset the headphones?
If the headphones are not functioning properly, you can reset them. Ensure the headphones are powered on, then press and hold both the volume up and multifunction buttons simultaneously for about 5 seconds. The LED indicator will flash red three times, and the headphones will reboot. This clears the pairing list.
What is the battery life of the NBH-03R?
The built-in lithium-ion battery provides up to 15 hours of continuous playback at 50% volume. Using the microphone or higher volume will reduce this time. The headphones enter standby mode when not in use, preserving battery life.
How long does it take to fully charge the headphones?
Charging the NBH-03R from empty to full takes about 2 hours using the included USB-C cable. A red LED indicates charging, and a blue LED shuts off when fully charged. You can also check the battery level via your device's Bluetooth status if supported.
Can I use the headphones while they are charging?
Yes, the NBH-03R supports passive use while charging. However, to ensure safety and battery lifespan, we recommend not using them during charging for extended periods. The audio will continue to play, but Bluetooth range may be slightly reduced.
How do I clean the ear cushions and headband?
Use a soft, dry lint-free cloth to wipe the ear cushions and headband. For stubborn smudges, slightly dampen the cloth with mild soapy water, then wring it out well. Avoid letting moisture into the speaker mesh. Do not use alcohol, abrasives, or strong cleaning agents.
Are the NBH-03R headphones sweat or water resistant?
No, the NBH-03R is not rated IPX for water or sweat resistance. Keep them away from rain, splashes, and high-humidity environments. Use a protective case when storing them after workouts.
Can I connect these headphones to my TV, computer, or gaming console?
Yes, any device with Bluetooth audio support can pair with the NBH-03R. For devices without Bluetooth, you can use a Bluetooth transmitter adapter connected to the audio output. The headphones also feature a built-in microphone for calls and online meetings.
How do I replace the ear cushions?
The ear cushions are removable. Gently pull the edge of the cushion to detach it from the ear cup. Align the new cushion with the retention ring and press it into place until it clicks. Replacement cushions can be purchased from Necnon customer service.
The sound is distorted or too quiet. What should I do?
First, check the volume level on both the device and the headphones. Ensure the headphones are fully charged. Try resetting the headphones to clear any audio glitches. Also, verify that the source is playing high-quality audio; some devices have volume limits. If the issue persists, contact Necnon support for further assistance.
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USER MANUAL NBH-03R Necnon
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Product information
Brand : Necnon
Model : NBH-03R
Category : Headphones