WSG-KH50Bluetooth USB Dongle

-07--08 --09--06- -11--12--13--10- -15--16--17--14- -19--20--21--18- -23--24--25--22- -02--03--04--05- DG2 conectado a la computadora Inserisci l'USB nel computer 1. Produktübersicht 2.Grundlegende Bedienfunktionen Inhalt A.DG2 Bluetooth-Sender 1 Stück B Bedienungsanleitung 1 Stück 1. Einschalten: Schließen Sie den DG2-Adapter an den Computer an. Das Gerät schaltet sich automatisch ein. 2. Ausschalten: Ziehen Sie den DG2-Adapter heraus, um das Gerät auszuschalten. Die blaue Anzeigelampe erlischt. 3. Kopplungsstatus: Nachdem der DG2-Adapter an den Computer angeschlossen ist und das Gerät gestartet wurde, wechselt der Adapter automatisch in den Kopplungsstatus. Die blaue Anzeigelampe blinkt und das Gerät sucht nach einem Bluetooth-Kopfhörer oder Bluetooth-Lautsprecher in der Nähe. (Hinweis : Bluetooth-Lautsprecher oder -Kopfhörer müssen auch in den Kopplungsstatus wechseln.) 4. Wiederverbindung: Schließen Sie den gekoppelten Bluetooth-Kopfhörer wieder an, nachdem Sie den DG2-Adapter wieder an den Computer angeschlossen und dann den Kopfhörer eingeschaltet oder den USB-Anschluss an den Computer angeschlossen haben, nachdem der Kopfhörer eingeschaltet wurde, oder trennen Sie die Verbindung über den Verbindungsab- st and hinaus und kehren Sie zum Verbindungsabstand zurück. (V erbundener Zustand: Die blaue Anzeigelampe leuchtet.) 3.Anzeigelampe 1. Einschalten: Die blaue Anzeigelampe blinkt. 2. Ausschalten: Die blaue Anzeigelampe erlischt. 3. Kopplungsstatus / Status der getrennten Verbindung: Die blaue Anzeigelampe blinkt. 4. Verbundener Zustand: Die blaue Anzeigelampe leuchtet. DG2 port connected to the computer A. Wie verbinde ich mich? Es wird empfohlen, den DG2-Adapter an den Computer anzuschließen, den Computer zu starten und dann den Bluetooth-Kopfhörer einzuschalten. Nach dem Einschalten des Kopfhörers wird der DG2-Adapter automatisch wieder angeschlossen. (Hinweis: Der Kopfhörer hat zuvor den DG2-Adapter angeschlossen.) B. Kann eine Verbindung mit Bluetooth-Kopfhörerpro- dukten anderer Marken hergestellt werden? Ja. C. Unter welchen Umständen wird er ausgeschaltet? Er wird ausgeschaltet, wenn der DG2-Adapter vom Gerät getrennt wird. D. Wie gehe ich mit einer Abweichungen um, z. B. einer ungewöhnlichen/unregelmäßigen Verbindung? Sie können versuchen, den DG2-Adapter abzuziehen und ihn dann erneut an den Computer anschließen. Schalten Sie dann den Kopfhörer aus und starten Sie ihn neu. Koppeln Sie den Kopfhörer mit den DG2-Adapter erneut. Wenn immer noch ein Fehler vorliegt, können Sie sich an den Hersteller und das Kundendienstpersonal wenden, um tec hnische Hilfe zu erhalten. E. Unterstützt es die Funktion eines Bluetooth-Kopf- hörers, der mit zwei Bluetooth-Geräten verbunden ist? Nein. 4.Bluetooth-Kopplung und -Verbindung A. Erste Verwendung: Setzen Sie den DG2-Adapter in den Computer ein, um ihn einzuschalten und zu starten, und wechseln Sie dann in den Kopplungsstatus (die blaue Anzeigelampe blinkt). Der Computer zeigt den Kopplungsversuch an. (Willful dongle). B. Versetzen Sie den Bluetooth-Kopfhörer in den Kopplungszustand und versuchen Sie, ihn in die Nähe von DG2 zu bringen. Innerhalb von 30 Sekunden wird er automatisch gekoppelt (die blaue Anzeigelampe des Adapters leuchtet nach erfolgreicher Verbindung normalerweise auf). Nach dem erstmaligen Koppeln der Bluetooth-Kopfhörer mit den DG2 Adapter, werden diese bei jedem weiteren Einschalten des Computers automatisch verbunden. (sounds much better) Hinweis: (Wenn Sie einen anderen Kopfhörer anschließen möchten, wird empfohlen, den Adapter vom Computer zu trennen. Anschließend beginnen Sie den Kopplungsvorgang von Neuem. Andernfalls kann der Anschluss an einen anderen Kopfhörer mehr Zeit in Anspruch nehmen.) 5.Produktspezifikation 6.Hinweise und Fragen & Antworten USB-Anschluss Blaue Kontrollleuchte Bedienungsanleitung für DG2 Bluetooth- Adapter Bluetooth-Spezifikation Frequenzbereich Unterstütztes Protokoll Betriebsbereich Nettogewicht Maße Betriebstemperatur Betriebsspannungsbereich Bluetooth 5.0 2.402-2.480GHz A2DP HFP AVRCP Bis zu 10 Meter ca. 6g 25,9 * 14,58 * 8,5 mm -10—55 5,0 ± 0,25 V 1.製品概要 2.基本操作機能 梱包リスト: A.ブルートゥース送信機1台 B.取扱説明書1通 1.起動:DG2インターフェイスをコンピュータ機器に挿入 して電源を入れると自動的に起動します。 2.シャットダウン:DG2を抜くとシャットダウンします。 青ランプが消灯します。 3.ペアリング状態:パソコンに挿入して電源を入れると、 自動的にペアリング状態になり、青ランプが点滅し、近 くのブルートゥース用イヤホンまたはブルートゥース用 スピーカーを検索します。 (注:ブルートゥース用スピー カーまたはブルートゥース用イヤホンはペアリング状態 にする必要があります) 4.接続戻し:DG2アダプタをパソコンに再挿入してイヤホ ンをつけたり、イヤホンをつけてからDG2をパソコンに 挿入したり、接続距離を超えて切断して接続距離に戻し たりすると、ペアリングされたブルートゥースイヤホン を接続戻しできます。 (接続済み状態:青ランプが常時点 灯します。 ） 3.LED 1、起動:青ランプが点滅します。 2、シャットダウン:青ランプが消灯します。 3、ペアリング状態/未接続状態:青ランプが点滅します。 4、接続済み状態:青ランプが常時点灯します。 4.ブルートゥースのペアリングと接続 A.最初に使用する場合、DG2アダプタをコンピュータに 挿入して電源を入れ、ペアリング状態にします(青ランプ が点滅します)。 設定中(Willful dongle)とパソコンに表示 されます B.ブルートゥース用イヤホンをペアリング状態にし、で きるだけDG2、30s程度に近づけると自動的にペアリング されます(接続に成功するとアダプタの青ランプが常時点 灯します)。 ペアリングされている場合、ブルートゥー ス用イヤホンは、ペアリングされたDG2に自動的に接 続戻しされます。 注:(イヤホン接続を変更したい場合は、アダプタをコン ピュータから抜いてから挿入し直すことをお勧めしま す。 他のイヤホンとの接続時間が長くなる場合があり ます。 ） C.パソコン側で音楽を再生したり電話をかけたりすると 、ブルートゥース用イヤホンは音楽や通常の通話を聴 くことができます。 5.製品仕様 6.注意事項と質疑応答 A.どのように接続戻しするのでしょうか？ DG2をコンピュータに接続して起動してから、ブルート ゥース用イヤホンを起動することをお勧めします。イヤ ホンが起動すると、DG2に自動的に接続戻しされます。 (注:事前にDG2にイヤホンを接続しておく必要がありま す。) B.他のブランドのブルートゥース用イヤホン製品 を接続 できるのでしょうか？ できます。 C.いつシャットダウンするのでしょうか？ 装置からDG2を抜くとシャットダウンします。 D. .接続異常などの異常が出たらどうしたらいいのでし ょうか？ 抜いてからパソコンに差し込んで接続し直し、イヤホン をシャットダウンして再起動して、イヤホンをDG2に接 続し直してみてもいいです。それでも故障している場合 は、メーカーやカスタマーサービスに技術的なサポート を依頼してください。 E.1 ドラッグ 2をサポートしていますか？ サポートしていません USBインターフェース 青ランプ ブルーツース仕様 周波数範囲 サポート契約 使用範囲 CODEC 正味の重さ サイズ 動作温度 ブルーツース5.0 バージョン 2.402-2.480GHz A2DP HFP AVRCP UP to 10 meters SBC 25.9*14.58*8.5mm -10—55°C 5.0±0.25V 取扱説明書 ブルートゥースアダプタ DG2 DG2をパソ コンに挿入 します 1. Aperçu du produit 2. Opérations de base Liste de colisage A. DG2 Adaptateur Bluetooth : 1 pc B. Mode d’emploi : 1 pc 1. Pour allumer le produit: Branchez l'adaptateur USB(DG2) sur l'ordinateur et il s'allumera automatique- ment. 2. Pour éteindre le produit: Débranchez l' adaptateur USB(DG2) pour éteindre. Le vo…

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SKY WING COMMUNICATION ELECTRONICS CO., LTD Jul.09, 2021 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID : WSG-KH50 Model Number: KH50, DG2 To Whom It May Concern: We, The SKY WING COMMUNICATION ELECTRONICS CO., LTD hereby declare that the models are identical except the model name. Except for the different above, no other modification is performed. Sincerely, Signature: SKY WING COMMUNICATION ELECTRONICS CO., LTD Contact person: Tony Liu

SKY WING COMMUNICATION ELECTRONICS CO., LTD Agent Authorization Company: SKY WING COMMUNICATION ELECTRONICS CO., LTD Address: No.10 Road 63#, Long yan, Humen Town, Dongguan City, Guangdong, China Product Name: Bluetooth USB Dongle Model Number(s): KH50, DG2 Product Description: Bluetooth USB Dongle 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: 2021-06-08 Name: Tony Liu Company: SKY WING COMMUNICATION ELECTRONICS CO., LTD

SKY WING COMMUNICATION ELECTRONICS CO., LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021-06-28 Subject; Request for Confidentiality FCC ID: WSG-KH50 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 pursuant to 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 SKY WING COMMUNICATION ELECTRONICS CO., LTD Contact person: Tony Liu

External Photos TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT

FCC ID Label Location 3mm&10mm FCC ID: WSG-KH50

Internal Photos OPEN VIEW OF EUT INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3 INTERNAL VIEW OF EUT-4 Antenna

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Bluetooth USB Dongle Model Name KH50, DG2 FCC ID WSG-KH50 2. EVALUATION METHOD According to 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 f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION Pt=5.941dBm=3.927mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(3.927mW/5mm).[√2.402(GHz)]=1.217<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 76 FCC Test Report Report No.: AGC00213210601FE03 FCC ID : WSG-KH50 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth USB Dongle BRAND NAME : Levn MODEL NAME : KH50, DG2 APPLICANT : SKY WING COMMUNICATION ELECTRONICS CO., LTD DATE OF ISSUE : Jun. 28, 2021 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC00213210601FE03 Page 2 of 76 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jun. 28, 2021 Valid Initial Release Report No.: AGC00213210601FE03 Page 3 of 76 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. RECEIVER INPUT BANDWIDTH .............................................................................................................. 7 2.4. EXAMPLE OF A HOPPING SEQUENCY IN DATA MODE ......................................................................... 7 2.5. EQUALLY AVERAGE USE OF FREQUENCIES AND BEHAVIOUR ......................................................... 7 2.6. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................... 8 2.7. TEST METHODOLOGY ............................................................................................................................. 8 2.8. SPECIAL ACCESSORIES ......................................................................................................................... 8 2.9. EQUIPMENT MODIFICATIONS ................................................................................................................. 8 2.10. ANTENNA REQUIREMENT..................................................................................................................... 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 9 4. DESCRIPTION OF TEST MODES ................................................................................................................. 10 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 11 5.1. CONFIGURATION OF EUT SYSTEM ...................................................................................................... 11 5.2. EQUIPMENT USED IN TESTED SYSTEM .............................................................................................. 11 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 11 6. TEST FACILITY .............................................................................................................................................. 12 7. PEAK OUTPUT POWER ................................................................................................................................ 13 7.1. MEASUREMENT PROCEDURE ............................................................................................................. 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 13 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 14 8. 20DB BANDWIDTH ........................................................................................................................................ 19 8.1. MEASUREMENT PROCEDURE ............................................................................................................. 19 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 19 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 20 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 25 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 25 Report No.: AGC00213210601FE03 Page 4 of 76 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 25 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................... 25 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 25 10. RADIATED EMISSION ................................................................................................................................. 46 10.1. MEASUREMENT PROCEDURE ........................................................................................................... 46 10.2. TEST SETUP ......................................................................................................................................... 48 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 49 10.4. TEST RESULT........................................................................................................................................ 49 11. NUMBER OF HOPPING FREQUENCY .............................................................…

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Report No.: AGC00213210601FE03 Page 44 of 76 Test_Graph_EDR_ANT1_2402_3Mbps_Lower Band Edge Emissions Test_Graph_EDR_ANT1_2480_3Mbps_Higher Band Edge Emissions Report No.: AGC00213210601FE03 Page 45 of 76 Test_Graph_EDR_HOP_ANT1_NA_3Mbps_Lower Band Edge Emissions Test_Graph_EDR_HOP_ANT1_NA_3Mbps_Higher Band Edge Emissions Report No.: AGC00213210601FE03 Page 46 of 76 10. RADIATED EMISSION 10.1. MEASUREMENT PROCEDURE 1. The EUT was placed on the top of the turntable 0.8 or 1.5 meter above ground. The phase center of the receiving antenna mounted on the top of a height-variable antenna tower was placed 3 meters far away from the turntable. 2. Power on the EUT and all the supporting units. The turntable was rotated by 360 degrees to determine the position of the highest radiation. 3. The height of the broadband receiving antenna was varied between one meter and four meters above ground to find the maximum emissions field strength of both horizontal and vertical polarization. 4. For each suspected emission, the antenna tower was scan (from 1 M to 4 M) and then the turntable was rotated (from 0 degree to 360 degrees) to find the maximum reading. 5. Set the test-receiver system to Peak or CISPR quasi-peak Detect Function with specified bandwidth under Maximum Hold Mode. 6. For emissions above 1GHz, use 1MHz RBW and 3MHz VBW for peak reading. Place the measurement antenna away from each area of the EUT determined to be a source of emissions at the specified measurement distance, while keeping the measurement antenna aimed at the source of emissions at each frequency of significant emissions, with polarization oriented for maximum response. The measurement antenna may have to be higher or lower than the EUT, depending on the radiation pattern of the emission and staying aimed at the emission source for receiving the maximum signal. The final measurement antenna elevation shall be that which maximizes the emissions. The measurement antenna elevation for maximum emissions shall be restricted to a range of heights of from 1 m to 4 m above the ground or reference ground plane. 7. When the radiated emissions limits are expressed in terms of the average value of the emissions, and pulsed operation is employed, the measurement field strength shall be determined by averaging over one complete pulse train, including blanking intervals, as long as the pulse train does not exceed 0.1 seconds. As an alternative (provided the transmitter operates for longer than 0.1 seconds) or in cases where the pulse train exceeds 0.1 seconds, the measured field strength shall be determined from the average absolute voltage during a 0.1 second interval during which the field strength is at its maximum values. 8.If the emissions level of the EUT in peak mode was 3 dB lower than the average limit specified, then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions which do not have 3 dB margin will be repeated one by one using the quasi-peak method for below 1GHz. 9. For testing above 1GHz, the emissions level of the EUT in peak mode was lower than average limit (that means the emissions level in peak mode also complies with the limit in average mode), then testing will be stopped and peak values of EUT will be reported, otherwise, the emissions will be measured in average mode again and reported. 10. In case the emission is lower than 30MHz, loop antenna has to be used for measurement and the recorded data should be QP measured by receiver. High - Low scan is not required in this case. Report No.: AGC00213210601FE03 Page 47 of 76 The following table is the setting of spectrum analyzer and receiver. Spectrum Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Start ~Stop Frequency 1GHz~26.5GHz 1MHz/3MHz for Peak, 1MHz/3MHz for Average Receiver Parameter Setting Start ~Stop Frequency 9KHz~150KHz/RB 200Hz for QP Start ~Stop Frequency 150KHz~30MHz/RB 9KHz for QP Start ~Stop Frequency 30MHz~1000MHz/RB 120KHz for QP Report No.: AGC00213210601FE03 Page 48 of 76 10.2. TEST SETUP Radiated Emission Test-Setup Frequency Below 30MHz RADIATED EMISSION TEST SETUP 30MHz-1000MHz RADIATED EMISSION TEST SETUP ABOVE 1000MHz Report No.: AGC00213210601FE03 Page 49 of 76 10.3. LIMITS AND MEASUREMENT RESULT 15.209 Limit in the below table has to be followed Frequencies (MHz) Field Strength (microvolts/meter) Measurement Distance (meters) 0.009~0.490 2400/F(kHz) 300 0.490~1.705 24000/F(kHz) 30 1.705~30.0 30 30 30~88 100 3 88~216 150 3 216~960 200 3 Above 960 500 3 Note: All modes were tested for restricted band radiated emission, the test records reported below are the worst result compared to other modes. 10.4. TEST RESULT Radiated emission below 30MHz The amplitude of spurious emissions from 9kHz to 30MHz which are attenuated more than 20 dB below the permissible value need not be reported. Report No.: AGC00213210601FE03 Page 50 of 76 Radiated emission from 30MHz to 1000MHz EUT Bluetooth USB Dongle Model Name KH50 Temperature 21.8°C Relative Humidity 58% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Horizontal RESULT: PASS Report No.: AGC00213210601FE03 Page 51 of 76 EUT Bluetooth USB Dongle Model Name KH50 Temperature 21.8°C Relative Humidity 58% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Vertical RESULT: PASS Note: 1. Factor=Antenna Factor + Cable loss, Margin=Measurement-Limit. 2. All test modes had been pre-tested. The mode 7 is the worst case and recorded in the report. Report No.: AGC00213210601FE03 Page 52 of 76 Radiated emission above 1GHz EUT Bluetooth USB Dongle Model Name KH50 Temperature 21.8°C Relative Humidity 58% Pressure 960hPa Test Voltage Normal Voltage Test Mode Mode 7 Antenna Horizontal FrequencyMeter ReadingFactorEmission LevelLimitsMargin (MHz)(dBμV)(dB)(dBμV/m)(dBμV/m)(dB) 4804.00044.280.0844.3674-29.64 peak 4804.00037.140…

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Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHz RADIATED EMISSION TEST SETUP ABOVE 1GHz CONDUCTED EMISSION TEST SETUP CONDUCTED TEST SETUP