User's Manual

RFD-840 User Manual

1、Hold the ”ON/OFF” approx. 3 seconds to turn on the headphone. The light

will turn to blue and flash. On the contrary, hold the on/off approx 3 seconds,

turn off the power.

2、Put the USB Dongle insert the computer, the USB Dongle light will turn to

blue and flash

3、Hold the “Scan” button of headphone and transmitter approx. 3 seconds at

the same time. The headphone will have “toot toot toot…” sound, then,

release the buttons. Once you pair up, you don’t need to pair it again.

4、Then play music, the headset LED will go blue, and as well as USB

Dongle Led light. You can adjust the volume control by click the + - button.

5、When use Microphone, hold the “Scan” button approx 1 second, the

headset Led light will go red, and you can talk to others by microphone.

6、Once you pair up with the same headset and USB Dongle, you don’t need to

pair it again.

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RFD-840 User Manual 1、Hold the ”ON/OFF” approx. 3 seconds to turn on the headphone. The light will turn to blue and flash. On the contrary, hold the on/off approx 3 seconds, turn off the power. 2、Put the USB Dongle insert the computer, the USB Dongle light will turn to blue and flash 3、Hold the “Scan” button of headphone and transmitter approx. 3 seconds at the same time. The headphone will have “toot toot toot…” sound, then, release the buttons. Once you pair up, you don’t need to pair it again.
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7、When recharge the headset, take the USB rechargeable cable insert the headset, and the headset LED Light will go red. When finished the recharge, the LED Light will put out automatically 8、When there is no signal in 10 minutes, headset turn off automatically, you need to pair it up again. 9、When the battery power is low, headphone will have noise sound, its reminding user to change the battery. If not, headphone will turn off automatically within 5 minutes.