IMPORTANT
Read this instruction
carefully to avoid any malfunction.
The information shown in this manual serves only as a reference for
the product.
Due to updates there may be differences.
Please check our website (www.steren.com) for the most recent
version of this manual.
CAUTION
• Before using the headphones, make sure that the volume of your equipment is
moderate. Sounds with high volume can cause serious damage to the ear.
• Avoid using hearing aids while performing an activity that requires your attention. It is
dangerous to increase the volume too much by not being able to hear the sounds from
outside.
• Before using them for the first time, charge the battery 100%.
• Do not exceed 8 m distance between the hearing aids and the Bluetooth device.
• Do not use or store the product in places where there are leaks or splashes.
• This device is not intended for use by persons (including children), whose physical,
sensory or mental abilities are different or reduced, or who lack experience or knowled-
ge.
• Children should be supervised to ensure they do not use the device as a toy.
"Operation of this equipment is subject to the following two conditions: (1) this device or
device may not cause harmful interference, and (2) this device or device must accept
any interference, including interference that may cause undesired operation. "
BATTERY CHARGE
Always charge the battery for 4 continuous hours
While it is charging, the
indicator LED will remain lit in
red
HOW TO PLACE THE HEARING AIDS
BLUETOOTH LINK
1
Hold down
to light ...
... and put in search mode.
The LED indicator will flash in red and blue
2
On your device, look for the headpho-
nes that will appear as Steren-AUD-750,
and select them.
The indicator LED will flash blue slowly
when they are already linked.
Each time you turn on the headphones, they will
automatically connect to the last linked device.
SPECIFICATIONS
The specifications may vary without prior notice
Specifications:
Input: 5 V - - - 500 mA (x USB)
Battery: Li-ion 3.7 V - - - 55 mAh
RF frequency: 2.4 GHz
Microphone:
Sensitivity: -40 ± 3 dB
Frequency response: 50 Hz – 16 kHz
Impedance: ≤2.2 kohm
Be sure to
place the
hearing aids
correctly
R: Right
L: Left
Earphone:
Frequency response: 20 – 20 000 Hz
Driver unit: 8 mm
Impedance: 16 ohm
Sensitivity: 104 ± 3 dB @ 1 kHz
Max power output: 5 mW
V0.0 / 0218A
AUD-750
SPORT BLUETOOTH
EARPHONES
MUSIC REPRODUCTION
x1
Press and
hold
Volume +
Press and
hold
Volumen -
HANDS FREE
x1
Answer/
Hang up
The approximate duration of the battery in continuous use, at medium
volume, is 3 hours
The availability of these functions may vary depending on the model
of your mobile device, operating system version and Bluetooth
version.
WARRANTY
Product: Sport Bluetooth earphones
Model: AUD-750
Brand: Steren
WARRANTY
This Steren product is warranted under normal usage against defects in workmanship
and materials to the original purchaser for one year on the other parts and three months in her
battery from the date of purchase.
CONDITIONS
1. This warranty card with all the required information, invoice or purchase ticket,
product box or package, and product, must be presented when warranty service is required.
2. If the product is in the warranty time, the company will repair it free of charge.
3. The repairing time will not exceed 30 natural days, from the day the claim was received.
4. Steren sell parts, components, consumables and accessories to customer,
as well as warranty service, at any of the addresses mentioned later.
THIS WARRANTY IS VOID IN THE NEXT CASES:
If the product has been damaged by an accident, acts of God, mishandling, leaky batteries,
failure to follow enclosed instructions, improper repair by
unauthorized personnel, improper safe keeping, among others.
a) The consumer can also claim the warranty service in the purchase establishment.
b) If you lose the warranty card, we can reissue it, if you show the invoice or purchase ticket.
RETAILER INFORMATION
Name of the retailer ____________________________________
Address _____________________________________________
Product ______________________________________________
Brand _______________________________________________
Serial number _________________________________________
Date of delivery _______________________________________
In case your product fails or have questions, please contact your nearest dealer.
If you are in Mexico, please call to our Call Center.
01 800 500 9000
Instruction manual
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