ISOUND HM-290, User Manual

HM-290 CONTROL BOX FUNCTIONS

1st Button  

Sound Mute - Sound cannot be heard from headset 

2nd Button 

Microphone Mute - Your voice cannot be heard by opposite party

3rd Button 

Volume Down

4th Button  

Volume Up

CONNECTING HM-290 HEADPHONE TO PC/MAC/MACBOOK/CHROMEBOOK

1. Insert the USB end of the HM-290 into your computer USB port. 

NOTE:

 Please refer to your device’s user guide for setup instructions. Pressing the volume 

buttons only controls the volume of the HM-290 Headphones. Your device’s volume should 
be adjusted separately.

CONNECTING A DEVICE VIA USB TO 3.5MM ADAPTER

1. Insert the USB end of the HM-290 into the female end of the USB to 3.5mm Adapter. 
2. Insert 3.5mm end of the Adapter into your device.

NOTE: 

Please refer to your device user guide for compatibility. Control box functions are 

disabled when 3.5mm Adapter is in use. 

CONNECTING A DEVICE VIA USB TO PC/MAC ADAPTER

1. Insert the USB end of the HM-290 into the female end of the USB to PC/Mac Adapter. 
2. Insert the Headphone/Microphone end of the Adapter into your computer.

NOTE: 

Please refer to your computer’s user guide for compatibility. Control box functions are 

disabled when PC/Mac Adapter is in use.

FCC INFORMATION

This equipment has been tested and found to comply with the limits for a Class B Digital 
Device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide 
reasonable protection against harmful interference in a residential installation. This 
equipment generates, uses, and can radiate radio frequency energy and, if not installed and 
used in accordance with the instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that interference will not occur in a 
particular installation. 
If this equipment does cause harmful interference to radio or television reception, which can 
be determined by turning the equipment off and on, the user is encouraged to try to correct 
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the distance between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is 
connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following 
two conditions:
1. This equipment may not cause harmful interference.

2. This equipment must accept any interference received, including interference that may 
cause undesired operation.

Modifications not authorized by the manufacturer may void the user’s authority to operate 
this device. This equipment complies with FCC RF radiation exposure limits set forth for an 
uncontrolled environment. This transmitter must not be co-located or operating in 
conjunction with any other antenna or transmitter.

User Guide