nusound NUHD-021 User manual

Beatmaster Wireless
Foldable Headphone
***Important note before use***
If your PC does not have built-in
bluetooth functionality, we suggest
you using a bluetooth dongle, version
2.1 or above.
I. Function:
Serves as both a Wireless music
headphone and phone headset for
hands free calling.
High sensitivity, omni-directional,
concealed microphone lets you enjoy
crystal-clear phone calls with a
portable concealed microphone.
Rich and dynamic sound with
enhanced bass, and great clarity from
the acoustically advanced, high
efficiency 40mm driver.
Instant access to call and
playback controls plus volume level
buttons make adjustments a breeze
Compatible with most Bluetooth
enabled music players & A2DP
enabled devices such as iPad,
iPhone, iPod touch, Android Smart
Phones, etc.
Soft leatherette ear cushions let you
listen to your entertainment in
extreme comfort, even during long
hours of extended wear.
II. Package Content:
Foldable Headphone, User manual,
USB charge cable,3.5mm audio cable
(1.5M), Travel pouch.
III. Key Description:
1．LED Indicator
2．Volume+/Previous song
3．Volume-/Next song
4．ON/OFF/Pairing/Pause
5．USB 5V Input Port
6．Audio Input Port
When pairing: Red/Blue LED will
flash in turn.
When Connecting: Blue LED will flash
slowly.
When charging, Red LED light will
constantly illuminate, and will switch
off when fully charged.
Charging via Micro USB charge
connection.
3.5mm audio jack for wired
headphone use, you can connect
headphone to any audio source (with
3.5mm audio jack, like mobile
phones, tablets, PC etc) as wired
headphone.
IV. Headphone Charge:
Battery: Built-in rechargeable lithium
battery, DC: 3.7V/200mAh.
Charging power: Through
computer USB OR DC5V port.
Charging time: For the first usage
please put to charge at least 4 hours
continuously, For subsequent charging
2-3 hours is sufficient for 5-6 hours of
usage at average volume. When
charging, Red LED stays on, and off
when headphone is fully charged.
NEVER leave Headset to over-charge.
V. Headphone Pair
1. Please put your cell phone within
1M away from your headphone, the
closer, the better.
2. Hold button until red/blue LED
flashes in turn, then your head-
phone is in pairing mode.
3. Open the Bluetooth function on
your cell phone, search the Blue-
tooth device –“NUSOUND
(NUHD-021)”, then confirm with
password No. 0000 if necessary.
4. After your cell phone is paired with
headphone, headphone will auto-
matically enter into Standby Mode,
with blue LED flashing 2 times fast
by each 6 seconds.
VI. Answer the Call and
Stop the Call
When calling is incoming, there will
be indication sound in the head-
phone, press the power button
shortly, then you can answer the call.
Or you can use your cell phone to
answer the call. Hold the button to
refuse phone call.
When finished the call, please press
the power button shortly again to end
the call or you can use your cell
phone to do this.
VII. Exchange the
headphone calling into
Cell phone calling
You can press the power button for 3
seconds to change the call between
headphone and cell phone.
Choose music
When listening to music from PC, press
“ON/OFF” key quickly to pause , also
press “Volume+” and “Volume-” key
quickly to choose songs.
Adjust volume:
Hold the “Volume+” and “Volume-” to
adjust the volume.
Remark: The time limited for Blue-
tooth headphone is normally 2-3
minutes, if the red/blue stops flashing
in turn, the pairing is finished; If you
failed to pair, please repeat the above
steps.
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EN Model :NUHD-021

VIII. VOIP function for
Mobile phone use
1. Under standby mode or music
playing status, if you press “Power”
button shortly, Mobile phone will
enter into VOIP mode. After stop
VOIP, music will continue to play on
your mobile phone.
2. Re-dialing the last called number:
This headphone can support last
call re-dial, just press the power
button for 2 seconds, then you can
re-dial the last called number.
IX. Music listening
When listening the music on mobile
phone, if there is call in/out, the music
will stop, and continue to play after
calling.
X. Headphone Sleeping
function
After you disconnect the bluetooth
connection between PC/Mobile phone
and headphone, the blue LED light will
flash one time slowly by each 6S, you
can directly re-connect the PC/Mobile
phone with headphone by clicking
connection function with in 10 minutes.
No need to re-pair or re-power the
headphone. After 10 minutes,
theheadphone will power-off
automatically, then if you want to use
XI. Specification:
* Bluetooth V4.0
* The latest version of A2DP1.2 and
AVRCP1.0 profiles support.
* Supports Bluetooth Headset and
Hands free Profile(HFP 1.5).
* RF Frequency Range: 2.402-
2.480GHZ, 2.4G ISM band.
* Radio Performance: Receive Sensitiv-
ity of -85dB, TX Power Max 4dBm.
* Frequency Response: 20 Hz - 20
KHz, Very high Signal to Noise Ratio
(SNR):95 dB, Total Harmonic Distor-
tion (THD):0.1%.
*LED Indicator Status: Blue, Red.
* Operating Temperature: -10°C - 50°C
* Storage Temperature: -20°C - 80°C
Attention:
If headphones do not switch on,
please recharge the headset.
For longer working time of battery,
please remember to turn off
headphone after use and only use
the professional charge tools to
charge power.
Please charge power at least 4
hours at first time, later just 2-3
hours will be enough.
Please charge power at first if the
headphone hasn’t been used for
long time.
The battery of headphone is original
and please don’t change it by
yourself.
Please store in a dry, cool place out
of direct contact with constant
sunlight.
Please do not pull bracket over 45°,
and don’t twist headphone bracket
your headphone, you need to power on
it (blue LED light flashes quickly),
headphone and mobile phone will
connect automatically.
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EN