2BBYJ-NS87NS87 KEYBORD

Function configuration: Key number and type RGB keyboard \ Mechanical axis Language version English 87 key Memory function Light brightness speed Boot animation No FN Combination Tips Ye s LOGO LightNo Knob function Yes Keyboard lock No Function indicator light Independent indicators CAP and SCR MAC function Ye s Light recording No Connection mode USB, Bluetooth, 2.4G three mode interchangeable String information iProduct：NS87 KEYBORD iManufacturer：/ Device information VID：4A4C PID: E987 NS87 KEYBORD 1 Multimedia and special keyboard functions: Windows FN+F1 Screen brightness - FN+F2 Screen brightness + FN+F3 Ta s k switching （WIN+TAB FN+F4 Resource manager FN+F5 E-mail FN+F6 My computer FN+F7 Previous song FN+F8 Play/pause FN+F9 Next song FN+F10 Sound off FN+F11 Volume - FN+F12 Volume + FN+L_WIN Unlock/lock the Win key FN+Bac kspace Query power (battery operated in wireless mode) FN+ESC Press and hold for 3 seconds to restore factory Settings FN+Page Up Keyboard light switch/power saving mode switch FN+A Switch WIN mode FN+S Switching MAC mode Media and special keyboard features: MAC system FN+F1 Screen brightness - FN+F2 Screen brightness + FN+F3 Task control FN+F4 Control console FN+F5 FN+F6 FN+F7 Previous song FN+F8 Play/pause FN+F9 Next song FN+F10 Sound off FN+F11 Volume - FN+F12 Volume + FN+Bac kspace Query power (battery operated in wireless mode) FN+ESC Press and hold for 3 seconds to restore factory Settings FN+Page Up Keyboard light switch/powe r saving mode switch FN+A Switch WIN mode FN+S Switching MAC mode 2 Mode switching function: FN + 1 Bluetooth 1 FN + 2 Bluetooth 2FN + 3 Bluetooth 3 FN + 4 2.4G FN + 5 USB Default keyboard connection mode: The factory default is Bluetooth 1 pairing state. After you operate the connection mode, the keyboard will save the last connection mode in memory. The next time you open the keyboard, the last saved connection mode will be directly enabled for callback. Bluetooth pairing mode: Long press FN + 1 until the red light of indicator 3 flashes rapidly, indicating that the pairing mode is entered. Open the Bluetooth search U87 BT5.0 of the computer or mobile phone for pairing, and pair according to the prompts of the computer and mobile phone. After the pairing is successful, the red light of indicator 3 will keep on for 5 seconds. (60 seconds no pairing success keyboard enters sleep state); The keyboard supports 3 groups of Bluetooth connection, corresponding to keys 1, 2, 3, the same pairing method. Bluetooth 1 red light, Bluetooth 2 blue light, Bluetooth 3 yellow light. 2.4 Pairing mode (factory pairing): Long press FN + 4 until the green light of indicator 3 flashes rapidly, and then insert the 2.4G receiver into the computer to start pairing. After pairing is completed, the indicator 3 is green for 5 seconds. Note: 2.4G connection mode: FN+4 will directly enter the back connection state after the computer is plugged into Dongle. USB connection mode: Switch to USB connection mode USB re-enumeration, switching to any wireless mode will disconnect the USB connection. Note: There is no power saving function in USB mode. Power saving function: 1、The keyboard does not detect any operation on the keyboard for 60 seconds, and the keyboard goes to sleep. Note: The wireless is still connected, all lights on the keyboard are turned off, and it is in power-saving mode. 2、The keyboard does not detect any operation on the keyboard within 30 minutes, and the keyboard goes to sleep. Note: Wireless and keyboard all lights and other auxiliary functions are turned off, in low power mode. 3 Function indicator: (Independent indicator 3) Charging instructions: Charging indicator status indication Red on Be charging Green on Battery charge Red slow blinking (backlight off) Charge less than 5% Red flash Power below 0% (automatic shutdown) Power Query (FN +BackSpace) Numbers 1-0 indicate the corresponding amount of electricity Encoder: Rotate on the left to adjust the volume; Counterclockwise is small, clockwise is large. Rotate on the right to adjust the brightness; Counterclockwise is small, clockwise is large. 4 Primary key area lighting mode: (Mode underlined is default) FN+ Insert（Light mode switching） 1、Wave pattern - contains six directions: left, right, up, down, gathering and spreading. 9、Single light mode. 2、Breathing patterns. 10、Auroral pattern - contains two directions: convergence and diffusion . 3、Neon pattern. 11、The cross cursor. 4、Star mode. 12、Key response - contains two directions: up \ down 5、Radar mode - contains two directions: forward and reverse 13、Fireworks pattern. 6、Steady on mode. 14、Ripple pattern. 7、Automatic ripple mode. 8、Racing mode. Light color： FN+ Home -- Light color Light intensity： FN + ↑\↓ -- Keyboard level 5 light brightness adjustment (whenreachingthehighestor lowestflashingfunctionindicatesthreetimes). Light speed： FN + →\← -- Keyboard 5 level light speed adjustment (flashfunctionindicatesthreetimes whenreachingthehighestorlowest). Lights off： FN+ PageUp -- Keyboard lights off. 5 FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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 fol…

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Zhongshan Enzoplay Electronics Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – EquipmentType Company name: Zhongshan Enzoplay Electronics Co., Ltd. Address: 7-3-3, Block B, No. 15 Jinhong Road, Pingnan Industrial Zone, San Township, Zhongshan, Guangdong, China Product Name: NS87 KEYBORD FCCID: 2BBYJ-NS87 Model(s): NS87 2.911(d)(5)(i) EquipmentType We, [Zhongshan Enzoplay Electronics Co., Ltd.] (“the applicant”) certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: ZHOU QIN Date: July 07, 2023 Title: general manager Company name: Zhongshan Enzoplay Electronics Co., Ltd. Signature: NOTE 1 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Zhongshan Enzoplay Electronics Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.3 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Zhongshan Enzoplay Electronics Co., Ltd. Address: 7-3-3, Block B, No. 15 Jinhong Road, Pingnan Industrial Zone, San Township, Zhongshan, Guangdong, China Product Name: NS87 KEYBORD FCCID: 2BBYJ-NS87 Model(s): NS87 2.911(d)(5)(ii) Applicant filing We, [Zhongshan Enzoplay Electronics Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to §1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: ZHOU QIN Date: July 07, 2023 Title: general manager Company name: Zhongshan Enzoplay Electronics Co., Ltd. Signature: NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Zhongshan Enzoplay Electronics Co., Ltd. Agent Authorization Company: Zhongshan Enzoplay Electronics Co., Ltd. Address: 7-3-3, Block B, No. 15 Jinhong Road, Pingnan Industrial Zone, San Township, Zhongshan, Guangdong, China Product Name: NS87 KEYBORD Model Number(s): NS87 Product Description: NS87 KEYBORD 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: July 07, 2023 Name: ZHOU QIN Title: general manager Company: Zhongshan Enzoplay Electronics Co., Ltd.

Zhongshan Enzoplay Electronics Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: July 07, 2023 Subject; Request for Confidentiality FCC ID: 2BBYJ-NS87 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 Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 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 pursuantto KDB 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, Signature: Name: ZHOU QIN Title: general manager

Annex A External Photos Report No.:HK2305302228-1E/2E Page 1 of 4 Report No.:HK2305302228-1E/2E Page 2 of 4 Report No.:HK2305302228-1E/2E Page 3 of 4 Report No.:HK2305302228-1E/2E Page 4 of 4

FCC ID LABEL: Ca. 120mm x 50mm label location FCC ID: 2BBYJ-NS87

Annex B Internal Photos Report No.:HK2305302228-1E/2E Page 1 of 3 Report No.:HK2305302228-1E/2E Page 2 of 3 Antenna Report No.:HK2305302228-1E/2E Page 3 of 3

FCC RF Exposure EUT Description: NS87 KEYBORD Model No.: NS87 FCC ID: 2BBYJ‐NS87 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g 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: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation BLE: Frequency (MHz) Output power （dBm） Tune Up Power （dBm） Max Tune Up power dBm/mW Min test separati on distance mm Result Limit (mW/cm 2 ) SAR Test Exclusion 2440 3.69 3±1 4/2.512 5 0.785 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2305302228‐1E, antenna gain= 0dBi 2.4G: EIRP (dBm)=101.49(dBuV/m)-95.2=6.29(dBm) Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power dBm/mW Min test separatio n distance mm Result Limit (mW/cm 2 ) SAR Test Exclusion 2480 6.29 6±1 7/5.012 5 1.579 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2305302228‐2E, antenna gain= 0dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 1.579 which is<= 3, RF Exposure testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f (GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Page 1 of 43 Report No.: HK2305302228-1E FCC Test Report FCC PART 15 SUBPART C 15.247 Test Report On Behalf of Zhongshan Enzoplay Electronics Co., Ltd. For NS87 KEYBORD Model No.: NS87 FCC ID: 2BBYJ-NS87 Prepared For: Zhongshan Enzoplay Electronics Co., Ltd. 7-3-3, Block B, No. 15 Jinhong Road, Pingnan Industrial Zone, San Township, Zhongshan, Guangdong, China Prepared By: Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: May 30, 2023 ~ June 26, 2023 Date of Report: June 26, 2023 Report Number: HK2305302228-1E Page 2 of 43 Report No.: HK2305302228-1E Test Result Certification Applicant’s Name ................... : Zhongshan Enzoplay Electronics Co., Ltd. Address .................................... : 7-3-3, Block B, No. 15 Jinhong Road, Pingnan Industrial Zone, San Township, Zhongshan, Guangdong, China Manufacture's Name .............. : Zhongshan Enzoplay Electronics Co., Ltd. Address .................................... : 7-3-3, Block B, No. 15 Jinhong Road, Pingnan Industrial Zone, San Township, Zhongshan, Guangdong, China Product Description Trade Mark: DUKHARO Product Name ............................ : NS87 KEYBORD Model and/or type reference .. : NS87 Standards ................................ : 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., 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. Date of Test .............................................. : Date (s) of Performance of Tests ............... : May 30, 2023 ~ June 26, 2023 Date of Issue ............................................. : June 26, 2023 Test Result ................................................. : Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Page 3 of 43 Report No.: HK2305302228-1E Contents Page 1 Test Summary ................................................................................................................................................ 6 1.1 Test Description ......................................................................................................................................... 6 1.2 Measurement Uncertainty ......................................................................................................................... 7 1.3 Information of the Test Laboratory ............................................................................................................ 7 2 General Information ....................................................................................................................................... 8 2.1 General Description of EUT ...................................................................................................................... 8 2.2 Description of Test Conditions ................................................................................................................ 10 2.3 Description of Support Units .................................................................................................................... 10 2.4 Description of Test Setup ........................................................................................................................ 11 3 Equipments List for All Test Items ............................................................................................................. 12 4 Test Result .................................................................................................................................................... 14 4.1 Antenna Requirement.............................................................................................................................. 14 4.1.1 Standard Requirement ..................................................................................................................... 14 4.1.2 EUT Antenna ................................................................................................................................... 14 4.2 Conduction Emissions Measurement ...................................................................................................... 15 4.2.1 Applied Procedures / Limit ............................................................................................................... 15 4.2.2 Test Procedure ................................................................................................................................ 15 4.2.3 Test Setup ........................................................................................................................................ 16 4.2.4 Test Results ..................................................................................................................................... 17 4.3 Radiated Emissions Measurement .......................................................................................................... 19 4.3.1 Applied Procedures / Limit ............................................................................................................... 19 4.3.2 Test Setup ........................................................................................................................................ 19 4.3.3 Test Result ....................................................................................................................................... 21 4.4 Maximum Output Power Measurement ................................................................................................... 28 4.4.1 Limit ...................................................................…

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Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2450MHz 2500MHz2400MHz 2450MHz 2500MHz Center Frequency -1.26 -0.76 0 -5.25 -2.46 -1.86 MAX. Gain 0 dB PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain (dB) Frequency (MHz) MaxMinAvg 2400-1.26174-30.0801-7.18716 2450-0.765802-36.5604-7.48023 2500 0 -22.0315-6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

Report No.: HK2305302228-1E/2E Radiated Emissions Report No.: HK2305302228-1E/2E Conducted Emission