anua Ma C Cond al Inst uctio tructi on He on fo eadph or Bon hones ne s I:
Sum mmary of bu tton function ns:
1
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2 3L LED 4U USB 5//////
6 1: On/Off/Play/Pause 2: Vol+/Next 3: Vol-/Pre 4: LED indicating light 5: Microphone 6: USB charging port 7: Multi-functional button: Pause/Play/Answer/Hang-up/Assistant II:
Controls 3 LED power on;
On: When the headphone is in power-off state, press and hold power button for 3 seconds with blue LED flickering, reminding tone: power on. 5 LED poweroff;
Off: When the headphone is in power-on state, press and hold power button for 5 seconds with red LED flickering once, reminding tone: power off. BT 3 LED Pairing; J20 Connect BT: When the headphone is in power-off state, press and hold it for 3 seconds to enter a pairing state with red and blue LEDs flickering and reminding tone:
pairing. After the device (smart phone, tablet computer, etc.) discovers J20, press it to connect. LED 3 Connected;
Connected successfully: When the headphone is successfully linked to the device, blue LED will flicker every 3 seconds with reminding tone: Connected
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Pause/Play: When the headphone is playing a music, press the power button/multi-functional button to pause and press it again to play.
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Answer/Hang-up: When there is an incoming call, press the power button/multi-functional button to answer the call. When there is an on-going call, press it to hand it up. Vol+: Press the Vol+ once to turn up the volume. Vol-: Press the Vol- once to turn down the volume. Next: Press and hold the Vol+ for 2 seconds. Pre: Press and hold the Vol- for 2 seconds. 3 3 Assistant: Press the multi-functional button twice to enter the speech pattern and press it twice again to quit. USB Reset: After plugging the USB charging line, the headphone will be reset and powered off for charging. 5 Clear all paring info: Press and hold the power-on button and Vol+ button for 3 seconds at the same time. USB USB LED Charging: In case of using USB charging line for charging, connect the headphone with the USB power. During the charging, LED turns red. After charging, the LED turns blue. III:
Principles of bone conduction:
Sound directly conducted to the auditory nerve of the brain through bone Aerial conduction External auditory canal Eardrum Internal auditory canal Cochlea Auditory nerve of brain Bone conduction Aerial conduction Most of the sound we hear is the result of sound waves passing through our eardrum to make it vibrate so that the sound waves can be conducted to the internal auditory canal. The other w way is that t he sound w waves are dir rectly condu ucted to the internal aud ditory cana al through th he vibration of the bone e instead of eardrum. Th his is anothe er way of pe eople ring their ow wn sound an nd this sound d conduction n is called b one conduc ction. hea IV:
How w to wear speakers cl linging to yo our cheekbo ones. Han ng the headp phone behin nd your nec ck with both Afte er that, adjus st it until you u feel comfor rtable. V:
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5 5
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----------15
------------------1.5 B T -------------------5.0
------------------103db
------------------ -402db
------------------34.1g
------------------15 Specifications Music play time----------------Standard: 5.5 hours Standby time------------------15 days Charging time-----------------1.5 hours BT version----------------------5.0 Speaker impedance--------------103db Microphone sensitivity-------------402db Product weight-------------------34.1g Connection distance---------------15 meters VI:
Attentions Please wear the bone-conduction speakers of the headphone at your cheekbones before your ears and do not put them in your ears. Listening to music for an excessive long time may make you feel uncomfortable, please try to use a medium volume instead of a big one. No matter how the volume is, please do not make it prevent you from hearing the surrounding sounds. Please take care when using the headphone. Do not throw, press the headphone or put it in the water. The headphone should keep away from fire, water and high voltage devices. It is not for childrens use as it contains small parts. Please do not treat it as domestic waste. Instead, send it to your electrical and electronic recycling station. If there is any injury or property loss due to violation of the above contents, we will not bear any responsibility. FCC Warning This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.