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 Seat 'ƚƤŲƎƈōƂ TOOLS A B CONTENTS M9ŋŋ L R OPTIONAL No installation required M9ŋŋ B A 90° 0403 Ж**&%0 STEPS Align at screw holes then lock backrest connector with screw. Attention insert completely 10 07 LUMBAR SUPPORT TENSION ADJUSTMENT 03 FORWARD TILT ADJUSTMENT RECLINE GEAR LOCK BATTERY MAINTENANCE 06 11 12 05 BACK TILT TENSION ADJUSTMENT 09 5D ARMREST 04 BACK HEIGHT ADJUSTMENT 08 2D HEADREST '(+"'L·% 02 ELECTRIC CONTROL Seat Height Adjustment Back Tilt & Lock Adjustments 0605 Seat Height Adjustment Back Tilt & Lock Adjustments Seat Depth & Lock Adjustments 01 SINGLE LEVER CONTROL COAT HANGER '(+"'L·% LEGPRO LEG REST '(+"'L·% Press and hold the recline button to lean backward to a comfortable angle. Release the button to lock the memory gear. The adjustable range is 31 degrees. BACK TILT Press and hold the seat height button. Adjust the seat to a comfortable height and release the button to lock. The adjust- able range is 115 mm. SEAT HEIGHT 0807 SINGLE LEVER CONTROL 01 UPWARD & LOCK BACK TILTSEAT SLIDE SEAT HEIGHT Push the single lever backward , recline the backrest to a comfortable angle, and then pull the level back to the middle position to lock the memory gear. Pull up and hold the single lever to raise or lower the seat height. Release the lever to lock seat height. Push the lever forward to adjust seat depth. Return the lever to the center lock position to lock seat depth. ELECTRIC CONTROL 02 6 LEVELS 4 LEVELSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEVEVEVVVEVEVVEVVEEVEVEVEEEEVEEVEEEVEVEVEVEEVVEEVEEVEVEEEVEVVVVEVEEVEVEEEVEVEEVVEVVEEVEVEVVEVEEVVVVVVVVVVVVVVVVELSLSLSLSLSLSLSLSLSLSLSLSLSLSLLLSLSLLLLLLLLLLLLLSLLLLLLLSLSLSLSLLLLLLSLLLLLLLSLLSSSLLLSLSLSSSLLLSSLSLLLSSSSLLLLLSSSSLLLSSSLSSLSSLLSSSS4444444 44 44444 444444 44444444444444444444444444444LEEELEELELELELELELEELELELELELELEEELEELELELEELEEELELEEELELELELELEEEEEELEEEEELEEEELEEEELLLLLEELELELEEELLLLLLEEEELEELLLELEEELELLLLEELLLEELLLLLLEEE 6° 2° FORWARD TILT ADJUSTMENT 03 LJ Lj dž Lj LJdž Push the forward tilt handle downward, and then push the single lever backward. When the backrest reclines and then bounces back to the extreme front position after your back leaves the backrest, pull the single lever back to the middle position to lock it in the forward tilt angle. The adjustable range is about 8 degrees. ENGAGE FORWARD TILT Pull the forward tilt handle upward, and then push the single lever backward. Recline the backrest to disengage. DISENGAGE FORWARD TILT 1009 BACK HEIGHT ADJUSTMENT 04 Sit on the chair, and hold the backrest to push it upward or downward. When the seat back is pushed to the highest point, it will auto- matically return to the lowest position. Five levels are available with an adjust- able range of 65 mm. ENHANCE WEAKEN 05 BACK TILT TENSION Turn the knob count- er-clockwise to loosen the recline tension. Turn the knob clock- wise to tighten the recline tension. dž LJ Lj lj ٕшෆѳ᭞ऄ 06 1211 Pull the single lever backward and recline the seat to a comfortable angle. Push down the recline handle to lock in your desired gear. Four gears are available. increase the tension decrease the tension 07 LUMBAR SUPPORT TENSION ADJUSTMENT 2D 1D 1413 Rotate in the direc- tion where the contact point turns bigger to increase the tension. Rotate in the direc- tion where the contact point turns smaller to decrease the tension. For better lumbar support, it is recommended to sit fully in the chair with the lumbar supported. 08 2D HEADREST 'ƚƤŲƎƈōƂŊƨƈȹƤŲƎƈƎƈƂƯ 1DHEADREST HEIGHT Hold the support rod of the headrest with both hands, and pull the headrest up or down as a whole to move it to a lower or higher position. Eight gears are available with an adjustment range of 80 mm. 2DTILT ADJUSTMENT Tilt the headrest to adjust its angle. Four gears are available with an adjustable range of 60 ° 10 COAT HANGER 'ƚƤŲƎƈōƂŊƨƈȹƤŲƎƈƎƈƂƯ 1615 09 5D ARMREST UPLIFT ADJUSTMENT Hold the armrest and pull it up until it clicks. Release to lock in the desired height. The adjust- able range is 87 mm. ARM HEIGHT Hold the front end of the armrest and tilt it up. The upward tilt will remain when you release the front end. 7 gears are available with an adjustable range of 40°. The armrest will return to the lowest position when the highest point is hit. ARM DEPTH Move the armpad forward or backward to adjust the arm depth, in total 45 mm range. ARM WIDTH Move the armpad inward or outward to adjust the arm width, in total 15 mm range. ARM ANGLE Swing the front end of armpad in or out to adjust the arm angle, total 5 positions locking with 45 ° range. Hold both ends of the hanger and pull to the side to extend. Press and hold the button in the middle of the hanger to retract. 11 LEGPRO LEG REST 'ƚƤŲƎƈōƂŊƨƈȹƤŲƎƈƎƈƂƯ 3 As per picture, rotate the folded part of legrest forward to unfold completely and lock the gear. 2 Pull up the legrest to rotate outward to 145° . It can be locked at any available angle within an adjustable range of 145°. 1 Turn the switch under the cushion to its utmost clockwise position. ? 1817 12 BATTERY MAINTENANCE ACTIVATE Remove the insulating piece to begin using it. DISASSEMBLE Open the battery cover to replace the button battery. CEE SEMSEBLE tery cover to on bon batteattry. ASSEMBLE Push the battery into the designated port in the chassis. Press the button to disas- semble the lithium battery. * With electric control, two long beeps indicates the lithium battery’ s power is low, and two short beeps indicates the button battery’s power is low. CHARGE A 5V 2A charger is used. The LED turns solid green when fully charged. ǎDž 2019 Sitting on seat cushion fully (your hips should to…

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ATTACHMENT PHOTOGRAPHS OF EUT Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 v

FCC ID:2ARRF-EHSEABHAM5DEC 3.5C M 4CM Product Name: Office chair Product Model：EHSE-AB-HAM-5D-EC-LM Rated voltage：DC 3V Rated current：2A This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Photo 7 Photo 8 Photo 9 Photo 10 Photo 11 Photo 12 TX-Ant Photo 13 Photo 14 Photo 15 Photo 16 Photo 17 Photo 18 RX-Ant Photo 19 Photo 20 Photo 21

version01 COMFORT OFFICE FURNITURE CO.,LTD GUANGDONG Declaration concerning Antenna Specification It is hereby declared that the product Model No.: EHSE-AB-HAM-5D-EC-LM,X-AY-LAM-ZD-EC-LM,X-AY-LAM-ZD-EC,X-AY-HAM- ZD-EC-LM,X-AY-HAM-ZD-EC FCC ID: 2ARRF-EHSEABHAM5DEC fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for PCB Antenna type(s) described below: Model No. of antenna: N/A Type of antenna: PCB Antenna Gain of the antenna: 1.5dBi dBi Frequency range: The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: COMFORT OFFICE FURNITURE CO.,LTD GUANGDONG Address: Lujing Industry Zone, Nansha District, Guangzhou City, Guangdong Province, China City: Guangzhou City, Guangdong Province ZIP / Postal code: Country: China Name: Sun Ben Date: 15/08/2022 Signature: 434.26 7MHz

FCC ID: 2ARRF-EHSEABHAM5DEC Portable device According to §15.231 and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Antenna Type: PCB Antenna Antenna Gain:1.5 dBi Transmit power: Frequency (MHz) EIRP power (dBuV/m) EIRP power (dBm) EIRP power (mW) 434.267 50.14 -45.12 0.000031 EIRP=E-104.8+20log(D) Maximum Permissible Exposure: Modulation Channel Freq. (GHz) Conducted power (dBm) Conducted power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n 1g SAR Exclusion threshold SAR test exclusion GFSK0.434-45.120.000031-45±1-44.00.000040<50.0000053.00YES Conclusion: For the max result : 0.000005≤ 3.0 for 1-g SAR, No SAR is required. Signature: Date: 2022-06-29 NAME AND TITLE (Please print or type): Alex /Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China

Report No.: S22051002202001 ` Page 1 of30 RADIO TEST REPORT FCC ID:2ARRF-EHSEABHAM5DEC Product: Office chair Trade Mark: N/A Model No.: EHSE-AB-HAM-5D-EC-LM Family Model: X-AY-LAM-ZD-EC-LM,X-AY-LAM-ZD-EC, X-AY-HAM-ZD-EC-LM,X-AY-HAM-ZD-EC Report No.: S22051002202001 Issue Date: 29Jun.2022 Prepared for COMFORT OFFICE FURNITURE CO.,LTD GUANGDONG Lujing Industry Zone, Nansha District, Guangzhou City, Guangdong Province, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel. 400-800-6106, 0755-2320 0050, 0755-2320 0090 Website: http://www.ntek.org.cn Report No.: S22051002202001 ` Page 2 of30 Table of Contents Page 1. TEST RESULT CERTIFICATION 4 2. SUMMARY OF TEST RESULTS 5 3. FACILITIES AND ACCREDITATIONS 6 3.1 FACILITIES 6 3.2 LABORATORY ACCREDITATIONS AND LISTINGS 6 3.3 MEASUREMENT UNCERTAINTY 6 4. GENERAL DESCRIPTION OF EUT 7 5. DESCRIPTION OF TEST MODES 9 6. SETUP OF EQUIPMENT UNDER TEST 10 6.1BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM 10 6.2 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 11 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS 12 7. ANTENNA REQUIREMENT 14 7.1 STANDARD REQUIREMENT 14 7.2 EUT ANTENNA 14 8. CONDUCTED EMISSION MEASUREMENT 15 8.1 APPLICABLE STANDARD 15 8.2 CONFORMANCE LIMIT 15 8.3 MEASURING INSTRUMENTS 15 8.4 TEST CONFIGURATION 15 8.5TEST PROCEDURE 15 8.6TEST RESULTS 16 9. RADIATED EMISSION MEASUREMENT 17 9.1APPLICABLE STANDARD 17 9.2 RADIATED EMISSION LIMITS( FCC 15.209 ) 17 9.3 TEST PROCEDURE 19 9.4 TEST SETUP 21 9.5 TEST RESULTS 22 10. BANDWIDTH TEST 28 10.1 TEST PROCEDURE 28 10.2 DEVIATION FROM STANDARD 28 10.3 TEST SETUP 28 10.4 TEST RESULTS 29 Report No.: S22051002202001 ` Page 3 of30 Table of Contents Page 11. TRANSMITTER TIMEOUT 30 11.1 REQUIREMENTS 30 Report No.: S22051002202001 ` Page 4 of30 1. TEST RESULT CERTIFICATION Applicant’s name ......................... : COMFORT OFFICE FURNITURE CO.,LTD GUANGDONG Address ....................................... : Lujing Industry Zone, Nansha District, Guangzhou City, Guangdong Province, China Manufacturer's Name .................. : COMFORT OFFICE FURNITURE CO.,LTD GUANGDONG Address ....................................... : Lujing Industry Zone, Nansha District, Guangzhou City, Guangdong Province, China Product description Product name .............................. : Office chair Model and/or type reference ..... : EHSE-AB-HAM-5D-EC-LM Family Model ............................... : X-AY-LAM-ZD-EC-LM,X-AY-LAM-ZD-EC, X-AY-HAM-ZD-EC-LM,X-AY-HAM-ZD-EC Measurement Procedure Used: APPLICABLE STANDARDS APPLICABLE STANDARD/TEST PROCEDURE TEST RESULT FCC 47 CFR Part 15, Subpart C ANSI C63.10-2013 Complied This device described above has been tested by Shenzhen NTEK Testing Technology Co., Ltd., and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of Shenzhen NTEK Testing Technology Co., Ltd., this document may be altered or revised by Shenzhen NTEK Testing Technology Co., Ltd., personnel only, and shall be noted in the revision of the document. The test results of this report relate only to the tested sample identified in this report. Date of Test : 10 May. 2022 ~26 Jun. 2022 Testing Engineer : (Susan Li) Authorized Signatory : (Alex Li) Report No.: S22051002202001 ` Page 5 of30 2. SUMMARY OF TEST RESULTS FCC Part15 (15.231), Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission N/A 15.203 Antenna Requirement Pass 15.231(b) 15.209 15.205 Radiated Spurious Emission Pass 15.231(c) Occupied Bandwidth Pass 15.231(a)(1) Transmitter Timeout Pass NOTE: (1) ” N/A” denotes test is not applicable in this Test Report. (2) The EUT is using a new battery Report No.: S22051002202001 ` Page 6 of30 3.FACILITIES AND ACCREDITATIONS 3.1 FACILITIES All measurement facilities used to collect the measurement data are located at 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen 518126 P.R. China The sites are constructed in conformance with the requirements of ANSI C63.7, ANSI C63.10 and CISPR Publication 22. 3.2 LABORATORY ACCREDITATIONS AND LISTINGS Site Description CNAS-Lab. : The Certificate Registration Number is L5516. IC-Registration The Certificate Registration Number is 9270A. CABidentifier:CN0074 FCC- Accredited Test Firm Registration Number:463705. Designation Number: CN1184 A2LA-Lab. The Certificate Registration Number is 4298.01 Name of Firm : ShenzhenNTEK Testing Technology Co., Ltd. Site Location : 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen 518126 P.R. China. 3.3 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y±U, where expended uncertainty U is based on astandard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95%. No. Item Uncertainty 1 Conducted Emission Test ±2.80dB 2 RF power,conducted ±0.16dB 3 Spurious emissions,conducted ±0.21dB 4 All emissions,radiated(30MHz~1GHz) ±2.64dB 5 All emissions,radiated(1GHz~6GHz) ±2.40dB 6 All emissions,radiated(＞6GHz) ±2.52dB 7 Temperature ±0.5°C 8 Humidity ±2% 9 All emissions, radiated(9KHz~30MHz) ±6dB Report No.: S22051002202001 ` Page 7 of30 4.GENERAL DESCRIPTION OF EUT Equipment Office chair Trade Name N/A Model Name EHSE-AB-HAM-5D-EC-LM Family Model X-AY-LAM-ZD-EC-LM,X-AY-LAM-ZD-EC, X-AY-HAM-ZD-EC-LM,X-AY-HAM-ZD-EC Model Difference All the model are the same circuit and RF module, except for the headrest, the armrest, the pedals and the different colored frames Product Description The EUT is a Office chair Operation Frequency: 434.267MHz Modulation Type: FSK Number Of Channel 1CH Antenna Designation: PCB Antenna Antenna Gain: 1.5dBi Field Strength: 50.14dBuV/m Based on the applic…

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Radiated Measurement Photos