2AAUI-GDIEXESW801ES08 Extreme Subwoofer

20 What’s in the Box Extreme Sub Subwoofer (8pcs) ¼-20 stainless steal Hex Bolts – 3.5 ̋ long (8pcs) ¼-20 stainless steal Hex Bolts – 3 ̋ long Extreme Sub User Guide Remote Gain Level Controller 6.6ft Power Cable - EC5, Female 6.6ft Remote Turn-On Cable - Dark Blue (8pcs) 10-24 x 29/32” Stainless Steel Button Head Screws (8pcs) Lock Washers – small (8pcs) Washers – small (8pcs) ¼-20 Nuts (8pcs) ¼ Lock Washers (8pcs) ¼ Washers Horizontal Mounting Plate 6.6ft 3.5mm Audio Cable (2pcs) Vertical Mounting Plates (2pcs) Horizontal Mount Standoffs Extreme Sub ES08 Models: GDI-EXESW800...20 POWERSPORTS + GOLF CARS + MARINE SUBWOOFER User Guide 1 Extreme Sub ES08 Models: GDI-EXESW80  POWERSPORTS + GOLF CARS + MARINE SUBWOOFER User Guide 2 Extreme Sub Layout BACK RIGHT SIDE LEFT SIDE FRONT Control Panel Auto-Turn-On Switch Backlit Subwoofer (Passive) Backlit Subwoofer Heat Sink 19 3.) Properly clean the ECOXGEAR and ensure the gaskets have no sand, dirt, or water on them prior to storage. 4.) Store your unit with all caps properly sealed to avoid long term internal moisture damage inside your unit. 5.) Return the ECOXGEAR to Grace Digital if you suspect water ingress into the unit or if the unit has experienced a severe impact that may have affected the integrity of the unit to take on water. You should never 1.) Never power your ECOXGEAR if you suspect water has entered the device. Powering a device with water inside could be potentially hazardous and cause fire or a spark. 2.) Never use your ECOXGEAR if you have dropped it or thrown it against a hard surface which may have destroyed the integrity of the subwoofer, housing, or gaskets. In the event of a severe impact to your unit, please return the unit to Grace Digital to review for potential damage. 3.) Never open the auxiliary doors in a water environment. This could cause water to ingress into the unit which could potentially be hazardous and cause a fire or a spark. 4.) Never connect a device to the auxiliary input jacks when in a water environment. The auxiliary jacks should only be used i n a dry environment. 5.) Never attempt to fix, repair your ECOXGEAR unit. Please send it back to Grace Digital for any assessments and repairs. CARE, MAINTENANCE & PRECAUTIONS: 1.) The unit is waterproof only when the caps and door are properly closed. 2.) Close the caps and door properly before use. If the unit is placed in a water environment without the caps or door properl y closed, water may enter into the unit and void your warranty. 3.) Dry unit completely before opening the caps. Do NOT open the caps if wet or in a wet environment. 4.) Do NOT apply excessive force to any surfaces of the unit when wet or in a wet environment. 5.) Do NOT use or store the unit in places with high temperature. 6.) AVOID prolonged exposure to ultraviolet radiation (UV sunlight) and strong magnetic fields. 7.) Periodically check the rubber seal on the caps and door for premature wear. 8.) Periodically clean the rubber with a soft moist cloth and ensure no objects such as dirt, hair, sand are on the rubber sea l ring. Do NOT use any oily solvent or chemicals for cleaning. 9.) Rinse off the unit with tap water after use in salt water.10.) Power the unit by attaching the 12VDC Power-In Connector (EC5, male) to the 6.6ft Power Cable (EC5, female) intended for use with the unit. The unit must be connected to a 12VDC, 30A rating power source. If the battery terminal voltage is not 12V, you will need a DC–DC converter with output 12V. Connecting the unit to a non-12VDC power source will lead to a malfunction or damage to the unit. LIMITED MANUFACTURER’S WARRANTY:Extreme Sub is covered by a 1-year limited warranty that covers defects in workmanship and / or materials for a period of 1 year from original purchase date. This warranty does not apply to any products which have been abused, neglected, modified or used for a purpose other than the one for which they were manufactured. Please refer to the above care and maintenance instructions for suggested care details. The warranty is valid only for the original owner who purchases the unit from an authorized dealer. Transfers do not qualify for warranty protection. Grace Digital reserves the right to replace any out-of-sto ck or discontinued product with a comparable product. Discontinued products may not be available for warranty replacement. Any contents are NOT covered by the limited manufacturer’s warranty. Warranty terms may be revised without notification at the discretion of the manufacturer. Please visit www.ecoxgear.com for additional product & warranty information. Extreme Sub ES08 by ECOXGEAR, a division of Grace Digital Inc., San Diego, California. Designed in California. Made in China. Patents pending. 18 FCC STATEMENT:This device c omplies with Part 15 of the FCC Rules. Operation is subject to the follo wing two conditions: 1.) This device may no t cause harmful interference, and 2.) This device must accept any interference received, including interferenc e that may cause undesired operation. WARNING: Changes or modifications not expressly appr oved by the party responsible for c ompliance c ould v oid the user’s authority to operate the equipment. NOTE: To maintain complianc e with FCC's RF Exposur e guidelines, this equipment should be installed and operated with minimum distance between 20cm the radiator to your body: Use only the supplied antenna. FCC ID: 2AAUI-GDIEXESW801.This equipment has been tested and f ound to comply with the limits for a Class B digital device, pursuan t to Part 15 of the FCC R ules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency ener gy and, if no t installed and used in accordanc e with the instructions, may cause harmful interferenc e to radio communications. However, there is no guaran tee that interferenc e will not occur in a particular installation…

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Grace Digital Inc. Agent Authorization Company:Grace Digital Inc. Address:Grace Digital Inc. 10531 4S Commons Drive #166 Suite #430, San Diego, California 92127, United States Product Name:ES08 Extreme Subwoofer Model Number(s):GDI-EXESW801 Product Description:ES08 Extreme Subwoofer We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2022-03-30 Name: JamesFlorczak Title: VP Operations Company: Grace Digital Inc.

D ate: 2022-03-30 <Grace Digital Inc.> Office of Engineering Technology Federal Communic ations Commission 7435 Oakland Mills Road Columbia, MD21046 Subject; Request for Long Term Confidentiality FCC ID: 2AAUI-GDIEXESW801 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description Pur suant to Public Notice DA 04-1705 of the Commission' s policy, in order to comply with the marketing regulations in 47 CFT §2.803 and the importation rules in 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuanttoKDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Si gnature: Nam e:James Florczak Title:VP Operations

Test Model No.: GDI‐EXESW801

1 2 3 4 图 纸号 说 明： 1 . B-355背板贴纸 2材质：合成纸，单面背胶，黑底白字，亚膜 3. 尺寸如图所示，公差： -0. 15mm 50mm ESOS Extreme Subwoofer by ECOXGEAR Model: GDI-EXESW801 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. Designed in San Diego, CA. Made in China. Patent Pending. CAN ICES-3 (B)/NMB-3(B) FCC ID: 2AAUI-GDIEXESW801 IC: 11210A-GDIEXESW801 INPUT: DC 12V30A 70mm 尺CE@ IP66 RoHS 垒 2 c�us lntertek 5004918 CONFORMS TO ANSI/UL STD.62368·1 CERTIFIED TO CAN/CSA STD.C22.2 N0.62368-1 A B c ． 110.otel x1NGTEL x1AMEN GRouP co., LTD BT-355背板贴纸 美 国 G race Digital DESIGN APPROVE CHECK DATE 2022 .03 .3 1 REV.2. 0 UNIT mm SCALE FIT SHEET 1 OF 1 4 TITLE D 料号 收飞面11开发 签收人 XL-QC-K06 1 品管 采购 制造 IQC 2 电子工程师 悔外确认 3

Test Model No.: GDI‐EXESW801

FCC ID: 2AAUI-GDIEXESW801 RF Exposure Evaluation Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation BLE Channel Max output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result 2440MHz 8.00 6.31 0.0025 1.0 PASS Remark: The max power density is less than MPE exempt limit, so it is compliance.

Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 1 of 12 Appendix for 15.247 1. Bandwidth 1.1 Test Result Test Mode Frequency (MHz) TX Type ANT No. 6dB Bandwidth Verdict Test Result (MHz) Limits (MHz) GFSK 2402 SISO 1 0.687 ≥0.5 PASS 2440 SISO 1 0.688 ≥0.5 PASS 2480 SISO 1 0.689 ≥0.5 PASS Test Mode Frequency (MHz) TX Type ANT No. 99% Occupied Bandwidth Test Result (MHz) GFSK 2402 SISO 1 1.056 Only for Report Use 2440 SISO 1 1.056 Only for Report Use 2480 SISO 1 1.054 Only for Report Use Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 12 1.2 Test Graph - 6dB Bandwidth Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 12 1.3 Test Graph - 99% Occupied Bandwidth Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 12 Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 5 of 12 2. Maximum Conducted Output Power 2.1 Test Result Test Mode Frequency (MHz) Tx Type Measured Peak Output Power (dBm) Limits (dBm) Verdict Ant 1 GFSK 2402 SISO 7.99 30 PASS 2440 SISO 8.00 30 PASS 2480 SISO 7.97 30 PASS 2.2 Test Graph Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 6 of 12 Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 7 of 12 3. Maximum Power Spectral Density (PSD) 3.1 Test Result Test Mode Frequency (MHz) Tx Type Maximum Power Spectral Density (dBm/3KHz) Limits (dBm/3kHz) Verdict Ant 1 GFSK 2402 SISO 6.77 ≤8 PASS 2440 SISO 6.69 ≤8 PASS 2480 SISO 6.68 ≤8 PASS 3.2 Test Graph Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 8 of 12 Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 9 of 12 4. Unwanted Emissions in Non-restricted Frequency Bands 4.1 Test Result Test Mode Frequency (MHz) TX Type ANT No. Spurious Conducted Emission (dBm) Limits (dBm) Verdict GFSK 2402 SISO 1 Refer to test graph -12.28 PASS 2440 SISO 1 Refer to test graph -12.28 PASS 2480 SISO 1 Refer to test graph -12.28 PASS 4.2 Test Graph Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 10 of 12 Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 11 of 12 Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 12 of 12 ------End------

Global United Technology Services Co., Ltd. Report No.: GTS202112000270F01 Authorized Signature: Robinson Luo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 24 TEST REPORT Applicant: Grace Digital Inc. Address of Applicant: Grace Digital Inc. 10531 4S Commons Drive #166 Suite #430, San Diego, California 92127, United States Manufacturer/Factory: Xingtel Xiamen Group Co., Ltd Address of Manufacturer/Factory: Xingtel Building,Chuangxin Road, Torch Hi-Tech Industrial District,Xiamen 361006, PR China Equipment Under Test (EUT) Product Name: ES08 Extreme Subwoofer Model No.: GDI-EXESW801 Trade Mark: ECOXGEAR FCC ID: 2AAUI-GDIEXESW801 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: December 30, 2022 Date of Test: December 31, 2022-March 30, 2022 Date of report issued: March 30, 2022 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 24 2 Version Version No. Date Description 00 March 30, 2022 Original Prepared By: Date: March 30, 2022 Project Engineer Check By: Date: March 30, 2022 Reviewer Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 24 3 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 7 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 5.4 DEVIATION FROM STANDARDS ............................................................................................................. 7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................... 7 5.6 TEST FACILITY .................................................................................................................................... 7 5.7 TEST LOCATION ................................................................................................................................. 7 5.8 ADDITIONAL INSTRUCTIONS ................................................................................................................. 7 6 TEST INSTRUMENTS LIST ..................................................................................................................... 8 7 TEST RESULTS AND MEASUREMENT DATA .................................................................................... 10 7.1 ANTENNA REQUIREMENT ................................................................................................................... 10 7.2 CONDUCTED OUTPUT POWER ........................................................................................................... 11 7.3 CHANNEL BANDWIDTH ...................................................................................................................... 12 7.4 POWER SPECTRAL DENSITY ............................................................................................................. 13 7.5 SPURIOUS EMISSION IN NON-RESTRICTED & RESTRICTED BANDS ....................................................... 14 7.5.1 Conducted Emission Method ..................................................................................................... 14 7.5.2 Radiated Emission Method ........................................................................................................ 15 8 TEST SETUP PHOTO ............................................................................................................................ 24 9 EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 24 Report No.: GTS202112000270F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 24 4 Test Summary Test Item Section in CFR 47 Result Antenna requirement 15.203/15.247 (c) Pass AC Power Line Conducted Emission 15.207 N/A Conducted Output Power 15.247 (b)(3) Pass Channel Bandwidth 15.247 (a)(2) Pass Power Spectral Density 15.247 (e) Pass Band Edge 15.247(d) Pass Spurious Emission 15.205/15.209 Pas…

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Test Model No.: GDI‐EXESW801 Radiated Emission