2A3DS-A974V2Aroma Diffuser

物料编码：503011085 图纸版本：B1.0 第1⻚，共2⻚ Aroma
diffuser ①②③ ④ 02
Installation
step 03
Functional
analysis 1.
Take
out
the
diffuser
head；







2.
Twist
off
the
bottle； 3.
Fill
the
bottle
with
essential
oil； 4.
Put
the
diffuser
head
back
in
the
machine. 01

Specification ManualPower
adapter Bottle
capBottle BT √ √Button 04

Smart
App
Instructions If
you
forget
your
password,
hold
down
the
On/Off
button
for
5
seconds, Restore
factory
settings,
password
is
8888 Where
to
get
the
app: Please
search
for“
Scent
Marketing"
in
Google
play
or
APP
store. Note: Make
sure
that
the
location
function
of
Bluetooth
and
mobile
phone
is
enabled. A974_005B3D8 A1_000EDBA A315_B9B5E AAA AAA 2G/3G/4G/5G ① ③② ④ ⑤ ⑥ 1.
Open
the
scent
marketing




app
and
select
Bluetooth. 2.
Select your device.3.
Enter
the
default
password





8888
and
press
Login. 4.
On
the
Device
Control





page;
You
can
change





your
device
name
and





label
information
of





your
scent
diffuser. 5.

Different
schedules






by
pressing
the"
+
"





button.
To
delete
a






schedule,
swipe
left. 6.

Press
the
toggle
button





to
turn
on/off
any






schedule. ⑦ ⑨ ⑧ 11 ⑩ 8.
Select
the
days
of
the





week
you
want
your





diffuser
to
run
(all
days






are
pre-selected). 7.
On
the
"Working
period




setting"
page，
Set
the





hours
of
the
day
you
want





your
diffuser
to
run
by




scrolling
the
"Start
working




time"
and"
Stop
working




time". 9.
Press
"
+"

or
"

-"

to





increase
or
decrease





the
preset
intensity





grades
(1-5.
See
chart





for
details. 11.

Press
the
"Save"
button








to
update
the
Settings. 12.
Tap
"Calibrate"
to
calibrate








consumption.
It
is
advised








to
calibrate
after
working








for
at
least
10
days.
Please








measure
the
remaining
oil








of
the
bottle
first
before








starting
calibrating.
Enter








the
current
essential
oil








volume,
then
click







"Confirm"
to
update
the








consumption
and
remaining








days
automatically. 13.

Change
the
default
password









by
pressing
on
the
"About
"








tab,
in
the"
Device
control"
. The
new
password The
new
password Confirm 15 15.
Enter
a
new
four-digit
password,
then
click
"Confirm".
PCB
Version：
V2.00 Equipment version：
V1.0 APP
version：
V4.2.9 14 14.
Press
the
"Password








Change"
to
access
the








password
change
page.
√ 10.

Check
(



)
the
Custom







box
to
create
a
custom







intensity
and
scroll
the







"""Spray
Time
and







Pause
Time." Input password (factory default password is 8888) Login Remember password NOTE:
Press
the
"Save" button
at
the
top
right
corner
of
the
screen
after
each
change. Select version Bluetooth version Wifi version Device Device control Set About Working period setting SaveSave Name: Label: Consumption: ml1.58 Aroma oils: ml150 Remaining: Day166 Calibrate Start working time Stop working time Repeat Grade Custom Work Time(s) Stop Time(s) Mon Tue Thur Fri Sat Sun AAA Device control Set About Save Name: Label: Consumption: ml1.58 Aroma oils: ml150 Remaining: Day166 Calibrate 12 13 Confirm Last time: 150ml Aroma oils: ml145 Please
enter
the
current
amount
of
aroma
oils Device control Save Set About Password
Change 5 Grade:1 Every day 00:00-23:59 23:58-00:01 Every day Grade:1 Grade:1 Every day 00:00-23:59 23:58-00:01 Every day Grade:1 lf
the
QR
code
cannot
be
scanned,
please
search
for
"Scent
Marketing"
in
Google
play
or
APP
store. Android
system IOS
system Size φ103*293mm Bottle 120ml 6W Working
Power 55㎡/165m³/5800ft³ Coverage 0.66
kg N.W. PP
+Fabric Material A974-b Model Input 12V





1A Rotate -
Rotate
clockwise
to
adjust
the
timer
levels:
1H-3H-6H-Smart. -
Rotate
counterclockwise
to
adjust
the
timer
levels:
Smart-


6H-3H-1H. Timer
Function -Short
press
to
turn
off
and
switch
cycle
through
the
settings:


G1
-
G2
-
G3
-
OFF. -Long
press
for
1
second
to
turn
on/off
the
ambient
light,
no


matter
the
device's
power
status; -Ambient
light:
Orange
light.
It
defaults
to
always
on
when
powered
on.
1H 3H 6H 12H 3G 2G 1G OFF DC
connector Nozzle Grade Timer Rotate 1H 3H 6H Smart 3G 2G 1G OFF 1H 3H 6H Smart 3G 2G 1G OFF 1H 3H 6H Smart 3G 2G 1G OFF 1H 3H 6H Smart 3G 2G 1G OFF 1H 3H 6H Smart 3G 2G 1G OFF -Long
press
the
OFF

for
1
second
to
turn
the
ambient
light
on/off,


without
affecting
other
lights.
Grade
button -Press
to
start
the
timer
mode:
Set
to
1H
for
1
hour
of
operation

before
automatic
shutoff；Set
to
3H
for
3
hours,
or
6H
for
6
hours,


after
which
the
device
will
turn
off
automatically. -
Bluetooth
Paired:
the
light
remains
on.
-
Data
receiving:
the
light
flashes.
-
Bluetooth
Unpaired:
the
light
is
off.
Smart APP 展开尺寸：283*208mm，材质：128g铜版纸 签字受控: 第2⻚，共2⻚ ! 08 Warning 10

Equipment
cleaning 09

Troubleshooting05

Concentration
and
consumption Note:
1.
Abova
data
is
for
reference
only.
If
customers
use
essential














oils
with
different
viscosities,
the
oil
consumption
will
vary；


























2.
For
the
best
diffusion
effect,
it's
recommended
to
use
essential





oils
with
a
viscosity
below
30mPa.s.
And
the
optimal
working





temperature
is
25°C. 06
ISED
Statement English:
This
device
contains
licence-exempt
transmitter(s)/receiver(s)
that
comply
with
Innovation,
Science
and
Economic
Development
Canada’s
licence-exempt
RSS(s).
Operation
is
subject
to
the
following
two
conditions: (1)
This
device
may
not
cause
interference. (2)
This
device
must
accept
any
interference,
including
interference
that
may
cause
undesired
operation
of
the
device. The
digital
apparatus
complies
with
Canadian
CAN
ICES-3
(B)/NMB-3(B). French:
Cet
appareil
contient
des
émetteurs/récepteurs
exempts
de
licence
qui
sont
conformes
aux
RSS
exemptés
de
licence
d'Innovation,
Sciences
et
Développement
économique
Canada.
L'exploitation
est
soumise
aux
deux
conditions
suivantes
: (1)
Cet
appareil
ne
doit
pas
provoquer
d'interférences. (2)
Cet
appareil
doit
acc…

Text truncated - open the document above for the full version.

Due Diligence Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern FCC ID Model name 2A3DS-A974V2 A974-V2.0, A974-b, A974 Pursuant to KDB 986446 D01 Covered Equipment Guidance the evaluation of the product above shows compliance for the following reasons: Compliance Evaluation process Results Inherent compliance The chipset(s) used is not capable of running the cybersecurity and/or anti-virus software Compliance The memory used does not allow the running the cybersecurity and/or anti-virus software Compliance The storage capacity does not allow the running the cybersecurity and/or anti-virus software Compliance The operating system used is not capable of running the cybersecurity and/or anti-virus software Compliance No inherent compliance Based on software bill of material Based on scan for running software on the device Based on filesystem scan for cybersecurity and/or anti-virus software The equipment for which authorization is sought complies with the rules and fulfils the requirements as detailed in the above mentioned KDB. Evaluation performed by Company Name: Shenzhen LCS Compliance Testing Laboratory Ltd. Contact Name: Martion Lee Address: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Phone: +86-755-82591330 Email: [email protected] Signature: Date: 2026-04-07

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2A3DS-A974V2 A974-V2.0, A974-b, A974 We, Applicant Company Name: Guangdong Chiyang Scent Technology Co., Ltd. Address: 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center No.3 Chanxing Road, Xianchong Village Chencun Town, Shunde District, Foshan, Guangdong 528313, China Phone: +86-13250355501 certify that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. or any of ist successors and assignees. We certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-04-14 Signature Date Name / Title: Shawn Wu / Product Manager Company: Guangdong Chiyang Scent Technology Co., Ltd. Address: 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center No.3 Chanxing Road, Xianchong Village Chencun Town, Shunde District, Foshan, Guangdong 528313, China Phone: +86-13250355501 Fax: +86-13250355501 E-Mail: [email protected]

Guangdong Chiyang Scent Technology Co., Ltd. 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center No.3 Chanxing Road, Xianchong Village Chencun Town, Shunde District, Foshan, Guangdong 528313, China Date: April 14, 2026 FCC ID: 2A3DS-A974V2 Model Number: A974-V2.0, A974-b, A974 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Guangdong Chiyang Scent Technology Co., Ltd. hereby declare that our product (Aroma Diffuser) Model Number: A974-V2.0, A974-b, A974 board, Schematic, Hardware version, Software version, structure and internal photos are same, model name differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, (Signed) Printed Name of Signee / Title: Shawn Wu / Product Manager Company: Guangdong Chiyang Scent Technology Co., Ltd. Address: 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center No.3 Chanxing Road, Xianchong Village Chencun Town, Shunde District, Foshan, Guangdong 528313, China Phone: +86-13250355501 Fax: +86-13250355501 Email: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2A3DS-A974V2 A974-V2.0, A974-b, A974 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-04-14 Signature Date Name / Title: Shawn Wu / Product Manager Company: Guangdong Chiyang Scent Technology Co., Ltd. Address: 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center No.3 Chanxing Road, Xianchong Village Chencun Town, Shunde District, Foshan, Guangdong 528313, China Phone: +86-13250355501 Fax: +86-13250355501 E-Mail: [email protected]

Page 1 of 5 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com External Photos of the EUT Fig. 1 Fig. 2 Page 2 of 5 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Fig. 3 Fig. 4 Page 3 of 5 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Fig. 5 Fig. 6 Page 4 of 5 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Fig. 7 Fig. 8 Page 5 of 5 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Fig. 9

Page 1 of 1 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Label and Location (Size: L: 3.0cm x W: 4.0cm) Label Location Aroma Diffuser Model: A974-V2.0 FCC ID: 2A3DS-A974V2

Page 1 of 3 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Internal Photos of the EUT Fig. 1 Fig. 2 Page 2 of 3 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Fig. 3 Fig. 4 Page 3 of 3 FCC ID: 2A3DS-A974V2 Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Fig. 5 Fig. 6 Ant

Page 1 of 9 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EB Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com RF Exposure Evaluation For Guangdong Chiyang Scent Technology Co.,Ltd. Aroma Diffuser Test Model: A974-V2.0 Additional Model No.: A974-b, A974 Prepared for : Guangdong Chiyang Scent Technology Co.,Ltd. Address : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Prepared by : Guangzhou LCS Compliance Testing Laboratory Ltd. Address : No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel : (+86) 020-39166689 Fax : (+86) 020-39166619 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : March 30, 2026 Number of tested samples : 2 Sample No. : C260326004-1, C260326004-2 Serial number : Prototype Date of Test : March 30, 2026 ~ April 03, 2026 Date of Report : April 07, 2026 Page 2 of 9 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EB Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com RF Exposure Evaluation Report Reference No. ................. : LCSC03276006EB Date of Issue ................................... : April 07, 2026 Testing Laboratory Name ............ : Guangzhou LCS Compliance Testing Laboratory Ltd. Address ........................................... : No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Testing Location/ Procedure ........... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name .......................... : Guangdong Chiyang Scent Technology Co.,Ltd. Address ........................................... : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Test Specification Standard ......................................... : FCC KDB publication 447498 D01 General RF Exposure Guidance v06 FCC CFR 47 part1 1.1310 FCC CFR 47 part2 2.1091 Test Report Form No. ................... : TRF-4-E-214 A/0 TRF Originator ................................ : Guangzhou LCS Compliance Testing Laboratory Ltd. Master TRF ..................................... : Dated 2011-03 Guangzhou LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Guangzhou LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Guangzhou LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. EUT Description. ........................... : Aroma Diffuser Trade Mark ...................................... : N/A Test Model ...................................... : A974-V2.0 Ratings ............................................ : Please Refer to Page 6 Result ........................................... : PASS Compiled by: Supervised by: Approved by: Lifeng Le/ Administrator Justin Zhu/ Technique Director Gavin Liang/ Manager Page 3 of 9 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EB Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com RF Exposure Evaluation Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCSC03276006EB April 07, 2026 Date of issue EUT......................................... : Aroma Diffuser Test Model............................... : A974-V2.0 Applicant............................... : Guangdong Chiyang Scent Technology Co.,Ltd. Address.................................. : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Telephone............................... : / Fax.......................................... : / Manufacturer........................ : Guangdong Chiyang Scent Technology Co.,Ltd. Address................................... : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Telephone............................... : / Fax.......................................... : / Factory................................... : Guangdong Chiyang Scent Technology Co.,Ltd. Address................................... : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Telephone............................... : / Fax.......................................... : / Page 4 of 9 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EB Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Revision History Report Version Issue Date Revision Content Revised By 000 April 07, 2026 Initial Issue -- Page 5 of 9 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EB Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North …

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Page 1 of 34 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC TEST REPORT For Guangdong Chiyang Scent Technology Co.,Ltd. Aroma Diffuser Test Model: A974-V2.0 Additional Model No.: A974-b, A974 Prepared for : Guangdong Chiyang Scent Technology Co.,Ltd. Address : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Prepared by : Guangzhou LCS Compliance Testing Laboratory Ltd. Address : No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel : (+86) 020-39166689 Fax : (+86) 020-39166619 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : March 30, 2026 Number of tested samples : 2 Sample No. : C260326004-1, C260326004-2 Serial number : Prototype Date of Test : March 30, 2026 ~ April 03, 2026 Date of Report : April 07, 2026 Page 2 of 34 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC TEST REPORT FCC CFR 47 PART 15 C(15.247) Report Reference No. ................. : LCSC03276006EA Date of Issue .................................. : April 07, 2026 Testing Laboratory Name ............ : Guangzhou LCS Compliance Testing Laboratory Ltd. Address .......................................... : No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Testing Location/ Procedure .......... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name ......................... : Guangdong Chiyang Scent Technology Co.,Ltd. Address .......................................... : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Test Specification Standard ......................................... : FCC CFR 47 PART 15 C(15.247) Test Report Form No.................... : TRF-4-E-145 A/0 TRF Originator ................................ : Guangzhou LCS Compliance Testing Laboratory Ltd. Master TRF ..................................... : Dated 2011-03 Guangzhou LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Guangzhou LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Guangzhou LCS Compliance Testing Laboratory Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. EUT Description. .......................... : Aroma Diffuser Trade Mark ..................................... : N/A Test Model ...................................... : A974-V2.0 Ratings ........................................... : Please Refer to Page 6 Result ........................................... : PASS Compiled by: Supervised by: Approved by: Lifeng Le/ Administrator Justin Zhu/ Technique Director Gavin Liang/ Manager Page 3 of 34 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com FCC -- TEST REPORT Test Model............................... : A974-V2.0 EUT......................................... : Aroma Diffuser Applicant............................... : Guangdong Chiyang Scent Technology Co.,Ltd. Address.................................. : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Telephone............................... : / Fax.......................................... : / Manufacturer........................ : Guangdong Chiyang Scent Technology Co.,Ltd. Address................................... : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Telephone............................... : Fax.......................................... : Factory................................... : Guangdong Chiyang Scent Technology Co.,Ltd. Address................................... : 1-9F, Unit A, and 5-9F, Unit B, Building 10, CIMC Center, No.3 Chanxing Road, Xianchong Village, Chencun Town, Shunde District, Foshan City, Guangdong Province, China, 528313 Telephone............................... : / Fax.......................................... : / Test Result PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Test Report No. : LCSC03276006EA April 07, 2026 Date of issue Page 4 of 34 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689 | E-mail: [email protected] | Web: www.lcs-cert.com Revision History Report Version Issue Date Revision Content Revised By 000 April 07, 2026 Initial Issue --- Page 5 of 34 FCC ID: 2A3DS-A974V2 Report No.: LCSC03276006EA Guangzhou LCS Compliance Testing Laboratory Ltd. Add: No.44-1, Qianfeng North Road, Shiqi, Panyu District, Guangzhou, Guangdong, China Tel: +(86) 020-39166689…

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SHENZHENB&TTECHNOLOGYCo.,LtdZHONGSHANB&TTECHNOLOGYCo.,Ltd -1- SPECIFICATIONFORAPPROVAL CUSTOMER：ShenzhenAi-ThinkerTechnologyCo.,Ltd CUSPARTNO:PB-03F PARTNAME:2.4GWLANAntenna Edition：1.0 EditorYuanNannan2021/12/13 VerifierGuanNing2021/12/13 ApproverXuFuqiang2021/12/13 Address 410, Block C, Huafeng Smart Innovation Port, Gushu 2nd Road, Gushu Community, Xixiang Street, Baoan District, Shenzhen, Shenzhen Ai-Thinker Technology Co., Ltd China SHENZHENB&TTECHNOLOGYCo.,LtdZHONGSHANB&TTECHNOLOGYCo.,Ltd -2- Directory 1、AntennaDimension...........................................................................................................................................-3- 2、Performanceparameter......................................................................................................................................-3- 3、VSWR..................................................................................................................................................................-4- 4、Passivetestdata:..................................................................................................................................................-4- 5、Radiationpattern..................................................................................................................................................-5- SHENZHENB&TTECHNOLOGYCo.,LtdZHONGSHANB&TTECHNOLOGYCo.,Ltd -3- Productspecification 1 、 AntennaDimension 2 、 Performanceparameter Name2.4GWLANAntenna ModelTypePCBPrintAntenna ELECTRICALSPECTFICATIONS FrenquencyRange2400-2500MHz BandWidth100MHz Impedance50Ω VSWR<2.0 MaxGain3.14dBi PolarizationVertical/Horizontal RadiationOmnidirectional Power50W MECHANICALSPECTFICATIONS ConnectorWeldingtype WorkingTemperature-40°C-+85°C LimitTemperature-40°C-+125°C SHENZHENB&TTECHNOLOGYCo.,LtdZHONGSHANB&TTECHNOLOGYCo.,Ltd -4- 3 、 VSWR 4 、 Passivetestdata: Frequency(MHz)24002410242024302440245024602470248024902500 Gain(dBi)2.052.212.262.172.082.372.673.023.083.142.77 Efficiency(%)52.5853.6854.9255.3254.6556.8857.6059.9060.2263.2761.46 SHENZHENB&TTECHNOLOGYCo.,LtdZHONGSHANB&TTECHNOLOGYCo.,Ltd -5- 5 、 Radiationpattern 2400MHz 2450MHz 2500MHz

Page1of23FCCID:2A3DS-A974V2ReportNo.:LCSC03276006EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,China Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com AppendixA RFTestDataforBTLE(ConductedMeasurement) ProductName:AromaDiffuser TestModel:A974-V2.0 EnvironmentalConditions Temperature: 24.1  C RelativeHumidity:52.2% ATMPressure:100.0kPa TestEngineer:Zhanghai Supervisedby:FengliuTang Page2of23FCCID:2A3DS-A974V2ReportNo.:LCSC03276006EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,China Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com A.1DTSBandwidth TestResult TestModeAntennaFreq(MHz) DTSBW [MHz] FL[MHz]FH[MHz]Limit[MHz]Verdict BLE_1MAnt1 24020.6602401.6642402.3240.5PASS 24400.6602439.6642440.3240.5PASS 24800.7242479.7402480.4640.5PASS Page3of23FCCID:2A3DS-A974V2ReportNo.:LCSC03276006EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,China Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com TestGraphs BLE_1M_Ant1_2402 BLE_1M_Ant1_2440 BLE_1M_Ant1_2480 Page4of23FCCID:2A3DS-A974V2ReportNo.:LCSC03276006EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,China Tel:+(86)020-39166689|E-mail:[email protected]|Web:www.lcs-cert.com Page5of23FCCID:2A3DS-A974V2ReportNo.:LCSC03276006EA GuangzhouLCSComplianceTestingLaboratoryLtd. Add:No.44-1,QianfengNorthRoad,Shiqi,PanyuDistrict,Guangzhou,Guangdong,China Tel:+(86)020-39166689|E-mail:[email protected]…

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