User Guide

34 | HD 4.50BTNC

Trademarks

Sennheiser and NoiseGard™ are trademarks of Sennheiser electronic GmbH &

Co. KG.

The Bluetooth® word mark and logos are registered trademarks owned by

Bluetooth SIG, Inc. and any use of such marks by Sennheiser electronic GmbH &

Co. KG is under license.

The N-Mark is a trademark or registered trademark of NFC Forum, Inc. in the

United States and in other countries.

The aptX mark and the aptX logo are trademarks of CSR plc or one of its group

companies and may be registered in one or more jurisdictions.

Other product and company names mentioned in this instruction manual/

safety guide may be the trademarks or registered trademarks of their respec-

tive holders.