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Wireless Headphones

User’s Guide for Model IAHN40 v2567-01

DC

 IN

DC

 IN

AU

X IN

AU

IN

LE

D

LE

D

MI

C

MI

C

ANC ON 

/ OF

F

AN

ON

 / 

OF

F

Volume/Skip

Press to adjust volume.

Press and hold to skip tracks.

Power/Play / Pause / Speakerphone

Press and hold to power ON or OFF

Press to play or pause audio. 

Press to answer incoming phone call.

Active Noise Canceling

Press and hold to turn active noise canceling ON/OFF

Features

•  Bluetooth 5.0
•  Bluetooth Wireless: range 

- 33 ft.

•  Built-in microphone
•  Aux in (3.5mm audio input)
•  Folding adjustable 

headband

•  On-ear controls
•  Voice prompts announce 

headphone operations

•  Built-in rechargeable 

lithium ion battery: life 
- approx. 8 hrs at 50%  
ANC on

•  Micro-USB port for battery 

recharge

Includes

•  3.5mm audio cable
•  Micro-USB to USB charging 

cable

DC Power Input 

Microphone

Indicator LED

Aux In

Battery Charging

Initial charge time is approximately 3 hours. Charge fully before 
use. The low battery indicator will flash, a voice prompt will 
announce “low battery,”  then the unit will automatically power 
OFF.

 

1.  Using a 

Micro-USB to USB

 cable (included), connect to 

the USB port of a powered on computer or USB power 

adaptor (not included) to charge the unit. 

DC

 IN
DC

 IN

AU

X IN

AU

X IN

LE

D

LE

D

MI

C

MI

C

ANC ON 

/ OF

F

AN

ON

 / OF

F

STATUS

INDICATOR

Power On

Flashing blue light

Charging

Solid red light

Charging Complete

Light OFF

Pairing

Flashing red / blue light

Pairing Complete

Flashing blue light

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