Users Manual
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TECHINICAL SPECIFICATIONS
Signal-to-noise ratio
Transmission mode
Automatic Frequency-Hopping Spread Spectrum
Carrier frequency
2.4GHz ISM BAND
Power Supply
output: DC 5V, 1A input : 100~240V
built-in 500mAh Li-ion Battery
Transmitter
Headphone
Frequency response
Distortion
≤1%
20 Hz – 20 KHz
≥70dB
Range
Up to 100 feet (without obstacles)
Working time 10 hours under wireless hearing mode
Charging time
3 hours
plug of power cable : 4.0*1.7mm
USB charging cable
LIMITED WARRANTY
12 months warranty: The 12 months warranty will cover defects in manufacturing
and product failure for a period of 12 months from the original date of purchase.
The warranty period is not extended if we repair or replace a warranted product.
Phenomena Causes Solutions
Part 3
Headphone
can not be
charged
successfully
Faulty USB charging cable
Please change another workable USB
charging cable to see if it works.
Adjust the balance control properly.
Switch the transmitter to MONO.
The balance is not adjusted properly.
The audio out signal of audio source
is mono, but the transmitter is
switched to STEREO.
The voice
is heard
onlywith
one ear
If you are using RCA connection,
the RCA audio cable connecting
the transmitter and your TV/audio
source is NOT FULLY plugged at
BOTH ends.
Try to wiggle the audio cable or unplug
and plug the audio cable from both the
ends on TV/audio source and the
transmitter .
Faulty cable/audio out port issue
Try another audio cable or another
audio device.
Faulty Power source
Please change another power source like
PC USB port, socket, different USB
charger(5V/500mA-2A).
The audio out function of the
connected audio device is defective
(poor signal out).
The connection between the
transmitter and the audio source is
not in place.
Make sure the connection is firm between
the transmitter and the audio source.
Connect to another audio out port .
Place the transmitter base at least 4 feet
away from smart WiFi TV/WiFi TV box/
TV sticks to avoid interference.
The headphone is used for listening
to streaming media (Netflix, Amazon
Prime Video etc).
Sound cuts
in and out
or
some noise
is occurred
This warranty is provided at the discretion of Simolio Ltd. And does not cover
cosmetic damage or damage due to acts of nature, accident, misuse, abuse,
negligence, commercial use, or modification of or to any part of the product.
Accessories such as audio cables, power adapter and perishable items such as
ear tips and batteries are not covered under this warranty.
Please contact: support@simolio.com (for NA/AU) or support_uk@simolio.com
(for UK) and provide your Amazon order ID to register the warranty.
SM-825D Pro
SM-825D Pro
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 1: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
-Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-Consult the dealer or an experienced radio/TV technician for help.
NOTE 2: 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.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm
between the radiator & your body.
FCC Radiation Exposure Statement:










