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1. The earphone should be stored in a cool and dry place, and
the working temperature should be 0一45 °C (32 - 113 F):
Working in an environment that is too cold, too hot or too
humid may shorten the life of the headphone.
2. Listening to music at too high a volume may damage your
hearing and the sound may be distorted. For traffic safety,
Please do not use the headphone while driving or riding.
3. After exercise, please wipe the water on the surface of the
headphone, especially the position of the magnetic charging port,
to prevent sweat and salt from eroding the charging port and
affecting the service life of the product.
4. Clean the headphones with a soft, dry cloth.
5. Please keep away from sharp and hard objects, which may
damage the headphone.
6.Do not use the headphone in direct sunlight for a long time.
7.Do not use the headphone in extreme light, temperature or
vibration.
8.Please do not use headphone in high temperature environment.
For example, use a hair dryer and enter the sauna room at the
same time or near the stove.
9. Do not place the headphone on an unstable or indined surface.
10. Children should use this device under the supervision of adults.
This product is not a toy.
Improper use of the headphone may cause injury to itself
or may endanger personal and property safety.
In case of personal and property damage caused by
improper use or warning by consumers in violation of
product instructions. the company will not bear all
consequences and the company will not bear any legal
liability.
Warranty period:
12 months from the date of purchase
Free of charge service:
During the warranty period, if there is any breakdown caused
by the product's build quality please contact the seller and
provide this warranty card together with the sales invoice.The
product will be repaired or replaced by a new one.
The warranty does not apply under the following circumstances:
1,The product label is broken.
2,Damage caused due to the product being disassembled
by a non-authorized repair agent.
3,Damage caused by external force or when there is visible
deformation of any of the external parts.
4,The product has been improperly used or stored.
5,Damage or breakdown caused by force majeure.
6,Other situations similar to the above.
Customer service information:
Customer Name
Customer Phone
Customer Address
Model Number
Purchase Date
Dealer
Invoice number
Tips and Maintenance
Connect the original charging cable to the magnetic suction port of
the headset and the charging head respectively, and the headphone
will be fully charged within 2 hours. In order to better ensure the
charging life, please use the 5V-1A charging head.
To charge the headphone
it's only allowed to rotate 270 degrees in the direction and angle
of the arrow in the picture above. When you can't rotate it, please
rotate in the opposite direction. Please don't rotate vigorously to
prevent damage.
Use of microphone stick:
There are positive and negative poles corresponding to the
magnetic suction charging. Mutual adsorption can charge
normally; Mutual exclusion can not charge, which may cause short
circuit of the main board circuit. Please do not force the magnetic
suction to fit and contact.
Note:
The life of rechargeable battery of this product is not shorter than
the service life of the product. The battery must be taken out by
professional recycling equipment. Any attempt to take out or
replace the battery may damage the headphone and affect your
warranty rights. Please do not put the battery into the fire to avoid
explosion.
Warning:
Multi-Function Button ( )
Reminder
Warranty card
Bone Conduction Headphone
ES-850 Pro
Bluetooth® V5.2
SIlica gel+Titanium alloy+PC
A2DP,AVRCP,HDP
More than 10 meters without obstruction
20Hz-20kHz
SBC
180mA / 3.7V li-polymer
6 hrs
2 hrs
5v
Bone Conduction speaker
87dB±3dB
-38dB±1dB
IPX6
30g (1.23oz)
Product type
Model no#
Bluetooth version
Material
Bluetooth protocols
Effective range
Frequency response
Audio Code
Battery capacity
Standby duration
Charge time
Input voltage
Speaker type
Speaker sensitivity
Microphone sensitivity
Waterproof rating
Weight
Power on
Power off
Pairing
Multi-Point
Connection
Play〡Pause
Reject call
Accept call
Redial
End call
Voice assistant
Accept incoming call
and end current one
"Power on"
"Power off"
"Pairing"
Speech
N/A
N/A
N/A
N/A
N/A
Beep
Tone
Keep pressing key for 2s
Keep pressing key for 3s
Keep pressing key for 5s
1.Keep pressing key for 5s
2.Connect device A
3.Turn off Bluetooth
of device A
4.Keep pressing key for 5s
5.Connect device B
6.Activate Bluetooth
of device A
Press once when
music playing
Press for 1s when
incoming call
Press once when
incoming call
Press twice in standby
mode
Press once during a call
Press thrice in
standby mode
Press for 2s
Rotation can be done only in the
direction and angle of the arrow
Folded state Positioning angle 2 Positioning angle 1
Status of use