User Guide
Table Of Contents
HD 4.50BTNC | 1
Contents
Contents
Important safety instructions ...................................................................................2
The HD 4.50BTNC wireless headphones ...................................................................4
Package includes ..........................................................................................................6
Product overview .........................................................................................................7
Overview of the headphones .................................................................................... 7
Overview of pictograms ............................................................................................. 7
Overview of the LED indications ............................................................................... 9
Overview of buttons .................................................................................................10
Getting started ......................................................................................................... 12
Charging basics ..........................................................................................................12
Pairing the headphones ...........................................................................................14
Adjusting the headband ..........................................................................................18
Using the headphones ............................................................................................. 19
Switching the headphones on ................................................................................19
Switching the headphones off ................................................................................ 19
Adjusting the volume ...............................................................................................20
Using NoiseGard .......................................................................................................21
Playing music ............................................................................................................ 22
Controlling music playback ......................................................................................23
Making calls on the headphones ........................................................................... 24
Voice control function ............................................................................................... 26
Using the audio cable .............................................................................................. 27
Care and maintenance ............................................................................................. 28
Replacing the ear pads .............................................................................................28
Storage and handling ...............................................................................................29
Replacing/removing the rechargeable battery ...................................................30
Troubleshooting ........................................................................................................ 31
Leaving the Bluetooth transmission range .......................................................... 32
Clearing previously paired devices .........................................................................32
Specifications ............................................................................................................ 33
Trademarks ................................................................................................................ 34