To Next PageTo Next Page
Need help?Do you have a question about the Sennheiser CX 400BT and is the answer not in the manual?
General| Type | True Wireless |
|---|---|
| Driver Type | Dynamic |
| Driver Size | 7 mm |
| Bluetooth Version | 5.1 |
| Bluetooth Codec | SBC, AAC, aptX |
| Bluetooth Profiles | A2DP, AVRCP, HSP, HFP |
| Battery Life (Earbuds) | Up to 7 hours |
| Charging Time | 1.5 hours |
| Weight (Each Earbud) | 6 g |
| Water Resistance | IPX4 |
| Microphone | Yes |
| Touch Controls | Yes |
| Frequency Response | 5 Hz to 21 kHz |
| Impedance | 16 Ohms |
| Quick Charge | Yes, 10 min for 1 hour playback |
| App Support | Sennheiser Smart Control |
| Battery Life (Case) | Up to 13 hours |
Information on how to avoid hearing damage and prevent magnetic field interference.
Guidelines for protecting the product from extreme temperatures, moisture, and improper use.
Warnings and precautions regarding the handling and charging of lithium rechargeable batteries.
Links to the detailed instruction manual and the Sennheiser Smart Control app.
Diagram labeling LEDs, USB-C input, LED button, magnetic holders, and charging compartments.
Diagram labeling the touch control panel, ear adapters, LEDs, microphones, and battery of the earbuds.
Explanation of LED colors and patterns indicating charging status and errors for the charging case.
Explanation of LED colors and patterns indicating pairing status, connection, and battery level for the earbuds.
Description of voice prompts for events like power on, connection status, and pairing.
Instructions on how to wake up and charge the earbuds and charging case for initial use.
Guidance on choosing the correct ear adapter size for optimal sound quality and comfort.
Steps to pair the earphones with a Bluetooth-enabled device like a smartphone.
Instructions on downloading and installing the Sennheiser Smart Control app for enhanced functionality.
Detailed steps for charging the earbuds and the charging case using a USB cable.
Details about Bluetooth version, codecs, pairing, and managing multiple device connections.
Step-by-step guide to pair the earphones with a smartphone via Bluetooth, including LED indicators.
How to switch audio connection between paired Bluetooth devices using the Smart Control app.
Procedure to disconnect the earphones from a paired Bluetooth device.
Instructions for pairing the left and right earbuds if they become unpaired.
Dialing numbers on the smartphone and ensuring the audio is routed to the earphones.
How to accept, reject, or end incoming calls using the earbud touch controls.
Instructions on how to replace worn or damaged ear adapters for hygiene and optimal fit.
What happens when the earphones go out of Bluetooth range and how to reconnect.
Details on the product warranty period and how to contact for service or replacement.
Statement confirming compliance with EU Radio Equipment Directive and RoHS Directive.
Information on the proper disposal of the product, batteries, and packaging according to regulations.
List of registered trademarks related to Sennheiser and other companies.
