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HT41866-Q vs. Original HT41866 – What’s the Difference?
The easiest way to identify your model is to check the charging port on the headphones.
Quick Check
USB-C = HT41866-Q
Micro-USB = Original HT41866
Which Model Do I Have?
2025 UPGRADED VERSION
HT41866-Q
Charging port: USB-C
Headphones: Two NB16-Q
Transmitter: Audikast-3
View HT41866-QORIGINAL VERSION
HT41866
Charging port: Micro-USB
Headphones: Two NB16
Transmitter: Audikast Plus
View Original HT41866What’s Different?
| Feature | HT41866-Q | Original HT41866 |
|---|---|---|
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.0 |
| Audio codec | aptX Adaptive | FastStream |
| Audio latency | Less than 50 ms | Less than 40 ms |
| Playtime | Up to 20 hours | Up to 20 hours |
| Charging port | USB-C | Micro-USB |
| Optical volume boost | Up to +6 dB | Not available |
| Included headphones | Two | Two |
What Changed?
USB-C Charging
The newer HT41866-Q uses USB-C. The original HT41866 uses Micro-USB.
Optical Volume Boost
When using an optical TV connection, the HT41866-Q can boost the volume by up to +6 dB. The original HT41866 does not have this feature.
Different Bluetooth Technology
The HT41866-Q uses aptX Adaptive. The original HT41866 uses FastStream.
What Stayed the Same?
- Up to 20 hours of headphone playtime
- Two headphones included with the set
- Wireless TV listening
- Low-latency TV audio
Still Not Sure Which Model You Have?
USB-C → HT41866-Q / NB16-Q
Micro-USB → Original HT41866 / NB16
You can also check the model number printed on the headphones or product label.
Need More HT41866-Q Help?
See all setup and troubleshooting guides for this product.
Still Having Trouble?
Contact the Avantree support team for additional assistance.
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