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This guide is for users of the Sennheiser CX 400BT True Wireless Earbuds, offering a premium listening experience with up to 20 hours of battery life. These earbuds are designed for comfort and ease of use, however, note that the product may differ from local products in terms of fit, age ratings, and language.
| Colour | White |
|---|---|
| Series | CX |
| Model Part Number | 508901 |
| Brand | Sennheiser |
Volume control is customizable through the Sennheiser Smart Control app. You can assign volume up/down to the touch controls on the earbuds.
Place the earbuds in the charging case. The case can be charged via a USB cable.
The earbuds provide up to 9 hours of playback on a single charge, with an additional 11 hours provided by the charging case, totaling 20 hours.
Yes, the Sennheiser CX 400BT earbuds have built-in microphones for making and receiving calls.
The earbuds are splash-resistant but not waterproof. Avoid exposing them to excessive water or moisture.
Place the earbuds in the charging case and close the lid for 10 seconds. This resets the connection.
Ensure Bluetooth is enabled on your device. Reset the earbuds by placing them in the charging case and closing the lid for 10 seconds, then try pairing again.
Make sure the ear adapters fit snugly in your ears. Adjust the equalizer settings in the Sennheiser Smart Control app.
Place both earbuds in the charging case for a few seconds, then remove them and try again. Ensure both earbuds are charged.
