Everything arrived in perfect condition and works great.
Sennheiser BTD 700 Bluetooth USB Adapter
Product Details
This is a Sennheiser Bluetooth adapter.
The firmware has been updated.
I primarily used it connected to a stationary Windows PC.
I have not used it for external purposes, such as connecting it to a smartphone.
I am selling it because I do not have any aptX-compatible wireless earphones on hand.
Thank you for your consideration.
High-quality audio compatible Bluetooth USB adapter.
- Model Name: BTD 700
- Brand: Sennheiser
- Connection Type: USB A / USB C
- Function: Bluetooth USB Adapter
- Sound Quality: High-quality audio
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Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.




