ISOUND HM-290 User Manual page 4

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.