2A9LW-XKB1Foldable keyboard

1, Power On Toggle the on/off switch to the side 2, Connect Open Bluetooth settings on laptop Press Bluetooth button down for 1 second until light flashes Find “Xebec Keyboard” in Bluetooth settings and press connect 3, Start Typing 4, Work done Turn off by toggling on/off switch to off ‐reconnection will be automatic，after each time product open, blue LED lights for 5 seconds then off. ‐reconnection another device, need to repeat the new connection steps. ‐low power indication, second LED indicates red, LED indicates yellow while charging, indicates green while full charged. ‐Caps lock indicates white LED while Caps lock on. Fn+Esc key pressing, it indicates white LED ‐while Fn lock function on ‐instant power on while keyboard in sleeping, after 10 minutes no operation. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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: This device and its antenna(s) must not be co‐located or operation in conjunction with any other antenna or transmitter The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Co m Ad d Pr o Mo d Pr o We act We an d issu our Sig Na m Title Com mpany: Xe dress: 311 oduct Name del Numbe oduct Desc authorize M on our beha declare tha d certificatio ues concern behalf shal nature: me: e: mpany: bec, Inc. Bowie St. e: Foldable er(s): XKB1 ription: Fo MiCOM Lab alf on all ma at MiCOM L n of equipm ning the app ll have the s Ethan Ga Manager Xebec, In Agen Apt 1507. e keyboard 1 ldable ke y bs Inc., 575 atters conce Labs Inc. is ment to the r proval applic same effect arreau nc. Xebec, nt Auth Austin TX d yboard Boulder C o erning the c allowed to f regulatory a cation. Any t as acts of , Inc. horizat 78703 US ourt, Pleasa certification forward all i agencies as and all acts our own. tion A anton, Califo of above na information s required a s carried ou Date: ornia 94566 amed equip related to t nd to discu ut by MiCOM Dec. 12, 20 6, USA, to pment. the approva ss any M Labs on 22 al

Office o Federa 7435 O Columb USA Subjec t FCC ID To Wh o Pursua are req u docume These d propriet might b In addi t in Title busine s authoriz For 4 O For 1 It is ou r corresp docume authoriz Sincer e Signatu Name: Title: M of Engineeri l Communic Oakland Mills bia, MD 210 t; Request f D: 2A9LW-X om It May C nt to the pro uesting the ents from pu documents tary informa be harmful to Schemat Block Di Parts Lis Operatio Tune-up tional to abo 47 CFR §2 ss sensitive zed devices External Test Set Internal P User Ma 45 days, pu OR 180 days pu r understand pondence du ents and thi zation is iss ely, ure: Ethan Gar anager ing Techno cations Com s Road 046 for Confiden XKB1 Concern, ovisions of t Commissio ublic disclos contain det ation in ope o our comp tic Diagram agram st onal Descrip Procedure ove mention .803 and th informatio n s, we reque Photos tup Photos Photos anual rsuant to P u ursuantto KD ding that all uring the ce s informatio sued. rreau X logy mmission ntiality the Commis on to withho sure indefin tailed syste ration of th e any and wo m ption ned docume e importatio n remains c st Short Te ublic Notice DB 726920 l measurem ertification re on will be av Xebec, I ssion’s rule old the follow nitely. m and equi e equipmen ould give co ents, in orde on rules in T confidential rm Confide e DA 04-170 0 D01. ment test rep eview proce vailable for Inc. s Title 47 S wing attach pment desc nt. The publ ompetitors a er to comply Title 47 CFR until the act ntiality of th 05. ports, FCC ess cannot public revi e Sections §0. hment(s) as criptions an ic disclosu r an unfair ad y with the m R §2.1204, tual market he following ID label for be granted ew once the Date: Dec. 457 and § 0 confidentia d are consi re of these d vantage in marketing re while ensu ting of newly attachmen mat and as confide n e grant of eq 12, 2022 0.459, we al dered as documents the market . egulations ring that y t(s); ntial quipment .

Annex A External Photos Report No.: HK2209154113-E Page 1 of 3 Report No.: HK2209154113-E Page 2 of 3 Report No.: HK2209154113-E Page 3 of 3

FCC ID LABEL: Ca. 20mm x 30mm label location FCC ID: 2A9LW-XKB1

Annex B Internal Photo Report No.: HK2209154113-E Page 1 of 4 Report No.: HK2209154113-E Page 2 of 4 Report No.: HK2209154113-E Page 3 of 4 Antenna Report No.: HK2209154113-E Page 4 of 4

FCC RF Exposure FCC ID: 2A9LW-XKB1 1. Limits According to KDB 447498 D04 General RF Exposure Guidance v01 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 Output power (dBm) Tune Up Power (dBm) Max Tune Up power dBm/mW Min test separati on distance mm Result Limit SAR Test Exclusion EDR -0.12 -1±1(0) 1 5 0.31496 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2209154113-E, antenna gain=1.87dBi The certified sample is portable device, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 0.31496 which is<= 3, SAR 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

UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Report for Broadcom By Alfred Grau UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Tested Products.• Antenna 1: integrated antenna. • Frequency = 2.402GHz. • Frequency = 2.441GHz. • Frequency = 2.480GHz. UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Coordinate System Reference: Antenna 1. Top view Side view Z Y X Front view Front viewRear view SMA connector X Z Y UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XZ Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. YZ Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XY Plane at f = 2.402GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XZ Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. YZ Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XY Plane at f = 2.441GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XZ Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. YZ Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Radiation pattern: Antenna 1. XY Plane at f = 2.480GHz Co-cross polarization field (dBi) Solid line: vertical polarizationDash line: horizontal polarization Total field (dBi) 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 -15 -20 -20 -25 -25 -30 -30 -35 0 45 90 135 180 225 270 315 0 0 -5 -5 -10 -10 -15 UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Return Loss: Antenna 1 BW(-10dB) ¡ 13.48% 2 2.2 2.4 2.6 2.8 3 Frequency (GHz) -16-14-12-10 -8-6-4-2 R e t u r n L o s s ( d B ) UCI CENTER FOR RF DESI GN AND CHARACTERIZATION Measurements summary Frequency (GHz) Plane Return Loss (dB) Polarization Gain max. (dBi) θ for Gain max. φ for Gain max. Antenna 1 2.402 XZ -10.90 Vertical -7.8 290 2.402 XZ -10.90 Horizontal 0.786 182 2.402 YZ -10.90 Vertical 1.21 226 2.402 YZ -10.90 Horizontal -7.75 10 2.402 XY -10.90 Vertical -15.4 20 2.402 XY -10.90 Horizontal 0.93 180 2.441 XZ -12.20 Vertical -7.36 318 2.441 XZ -12.20 Horizontal 1.32 180 2.441 YZ -12.20 Vertical 0.981 204 2.441 YZ -12.20 Horizontal -8.23 24 2.441 XY -12.20 Vertical -14.1 -14 2.441 XY -12.20 Horizontal 1.74 180 2.48 XZ -13.80 Vertical -7.95 312 2.48 XZ -13.80 Horizontal 1.81 186 2.48 YZ -13.80 Vertical 0.204 214 2.48 YZ -13.80 Horizontal -8.38 8 2.48 XY -13.80 Vertical -15.8 12 2.48 XY -13.80 Horizontal 1.87 180

Page 1 of 42 Report No.: HK2209154113-E TEST REPORT FCC PART 15 SUBPART C 15.247 Test report On Behalf of Xebec, Inc. For Foldable keyboard Model No.: XKB1 FCC ID: 2A9LW-XKB1 Prepared for : Xebec, Inc. 311 Bowie St. Apt 1507. Austin TX 78703 USA 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: Sept. 16, 2022 ~ Sept. 26, 2022 Date of Report: Sept. 26, 2022 Report Number: HK2209154113-E Page 2 of 42 Report No.: HK2209154113-E TEST RESULT CERTIFICATION Applicant’s name ................. : Xebec, Inc. Address ................................. : 311 Bowie St. Apt 1507. Austin TX 78703 USA Manufacture's Name ............ : SHENZHEN RAYCHEERS TECHNOLOGY LIMITED Address ................................. : Tongfang chuangxianggongshe 515, Xin er Tiyu center zonghe building, zhongxin road, xiner community, xinqiao subdistrict, Baoan district, shenzhen city, China Product description Trade Mark: Xebec Product name ........................... : Foldable keyboard Model and/or type reference : XKB1 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 ............. : Sept. 16, 2022 ~ Sept. 26, 2022 Date of Issue ........................................... : Sept. 26, 2022 Test Result ............................................... : Pass Prepared by: Project Engineer Reviewed by: Project Supervisor Approved by: Technical Director Page 3 of 42 Report No.: HK2209154113-E Table of Contents Page 1. SUMMARY............................................................................................................................................................ 5 1.1. TEST STANDARDS ..................................................................................................................................................... 5 1.2. TEST DESCRIPTION ........................................................................................................................................................ 5 1.3. INFORMATION OF THE TEST LABORATORY ......................................................................................................................... 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. GENERAL INFORMATION ....................................................................................................................................... 7 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 7 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 7 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 8 2.4. EQUIPMENTS USED DURING THE TEST .............................................................................................................................. 9 2.5. RELATED SUBMITTAL(S) / GRANT (S) .............................................................................................................................. 10 2.6. MODIFICATIONS ......................................................................................................................................................... 10 2.7. DESCRIPTION OF TEST SETUP ................................................................................................................................ 10 3. TEST CONDITIONS AND RESULTS ......................................................................................................................... 11 3.1. CONDUCTED EMISSIONS TEST ....................................................................................................................................... 11 3.2. RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 14 3.3. MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................................................... 25 3.4. 20DB BANDWIDTH ..................................................................................................................................................... 26 3.5. FREQUENCY SEPARATION ............................................................................................................................................. 28 3.6. NUMBER OF HOPPING FREQUENCY ................................................................................................................................. 30 3.7. TIME OF OCCUPANCY (DWELL TIME) .............................................................................................................................. 32 3.8. OUT‐OF‐BAND EMISSIONS ............................................................................................................................................ 34 3.9. PSEUDORANDOM FREQUENCY HOPPING SEQUENCE .......................................................................................................... 38 3.10. ANTENNA REQUIREMENT................................................................…

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Radiated Emission Conducted Emission