FCCID.CO- FCC ID Database
HomeCompaniesEquipment ClassesSearch

© 2026 FCC ID Database. All rights reserved.

AboutContactData sourced from FCC public records
  1. Home/
  2. Twin-Star International Inc./
  3. QCD-TS-4006

QCD-TS-4006SOUND SYSTEM

Twin-Star International Inc.

Application Details

Equipment Class
DTS - Digital Transmission System
Date of Grant
May 31, 2015
Application Purpose
Original Equipment
Date of Application
May 31, 2015
Equipment Note
SOUND SYSTEM
Frequency Range
2402.00000000 - 2480.00000000
Company
Twin-Star International Inc.
Country
China

Documents & Files

Select a file to view

Users Manual

↗

Attestation Statements

↗

Cover Letter(s)

↗
↗

External Photos

↗

ID Label/Location Info

↗

Internal Photos

↗

RF Exposure Info

↗

Test Report

↗

Test Setup Photos

↗

Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

MP#HW26MMS9726REV.1 1 Requires-Electric Fireplace Insert with Heater Necesitará, Además, El Hogar Eléctrico Con Calentador Nécessite AUSSI un foyer-insert électrique avec chauffage 26MMS9726 1-866-661-1218 www.tsicustomerservice.com Twin-Star International, Inc. Delray Beach, FL 33445 Made in China • Printed in China • Fabricado en China • Impreso en China • Fabriqué en Chine • Imprimé en Chine A Twin-Star International Br and MP#HW 2 www.tsicustomerservice.com26MMS9726REV.1 THANK YOU!THANK YOU!MERCI!MERCI! GRACIAS!GRACIAS! Thank you for purchasing a Twin-Star International product, designed in the U.S.A. We hope it brings you many years of enjoyment. Please take a moment of your time to register your new purchase: www.tsicustomerservice.com. For new users simply select the category that applies to the product you’ve purchased and fi ll out the product registration form. Once the registration process is complete you will be able to: • Register one or multiple products • Order parts • Download user manuals • Request product information or assistance When registering your product be sure to sign up for Twin-Star International updates, which will keep you informed of important service information, provide helpful tips about our products, and make it easier if you should ever have to contact our technical support group. Twin- Star International values your privacy and will never share your personal information with other organizations. The information you submit is used only for purposes of providing product related services to you. If you are unable to register your product, please save your proof of purchase for part replacement purposes. IMPORTANT: Retain for future reference. Read carefully. Nous vous remercions d’avoir acheté un produit Twin-Star International, conçu aux États-Unis. Nous espérons qu’il saura vous procurer des années de satisfaction. Veuillez prendre un moment pour enregistrer votre nouvel achat : www.tsicustomerservice.com. Pour les nouveaux utilisateurs, sélectionnez simplement la catégorie qui s’applique au produit que vous avez acheté et remplissez le formulaire d’enregistrement du produit. Une fois le processus d’enregistrement complété, vous serez en mesure de: • Enregistrer un ou plusieurs produits • Commander des pièces • Télécharger le manuel de l’utilisateur • Demander de l’information ou de l’assistance sur le produit Quand vos enregistrerez votre produit, assurez-vous de vous abonner aux mises à niveau de Twin-Star International, lesquelles visent à vous tenir au fait de toute information importante pour le service, à vous fournir des conseils utiles sur nos produits et à accélérer le processus si vous deviez contacter notre groupe de soutien technique. Twin-Star International se soucie de la protection de vos renseignements personnels et ne partagera jamais votre information personnelle avec d’autres organisations. L’information que vous soumettez est utilisée uniquement pour vous fournir des services en relation avec votre produit. Si vous ne parvenez pas a enregistrer votre produit, s’il vous plait gardez votre reçu comme preuve d’achat pour tout remplacement de pièces. Gracias por comprar un producto de Twin-Star International, diseñado en los EE.UU. Esperamos que le brinde muchos años de disfrute. Por favor, tómese un momento de su tiempo para registrar su compra nueva: www.tsicustomerservice.com. Para los usuarios nuevos, simplemente seleccione la categoría que se aplica al producto que ha comprado y rellene el formulario de registro del producto. Una vez fi nalizado el proceso de registro, usted podrá: • Registrar uno o varios productos • Realizar pedidos de piezas • Descargar manuales de usuario • Solicitar información o asistencia sobre el producto Cuando registre su producto, asegúrese de suscribirse a las actualizaciones de Twin-Star International, las cuales le mantendrán informado sobre la información importante de servicio, le proporcionarán consejos útiles acerca de nuestros productos, y le facilitarán cuando tenga que contactar a nuestro grupo de soporte técnico. Twin- Star International valora su privacidad y nunca compartirá su información personal con otras organizaciones. La información que usted envíe sólo se utiliza para fi nes de proporcionarle servicios relacionados con los productos. Si usted no puede registrar su producto, por favor guarde el comprobante de compra para el proposito de reponer piezas. IMPORTANT: Conserver pour référence future. Lisez correctement IMPORTANTE: Conservar para futuras con- sultas. Lea cuidadosamente. MP#HW 3 www.tsicustomerservice.com26MMS9726REV.1 DEPENDABLE CUSTOMER SERVICE Questions? Our experts are standing by to assist you at our toll-free help line. We can help you with assembly and, if necessary, replace damaged/ missing parts. Assistance is available 7 days a week/24 hours a day/365 days per year. Vous avez des questions ? Nos experts attendent votre appel sur la ligne sans frais, pour vous aider dans l’assemblage et au besoin pour remplacer toute pièce endommagée ou manquante. L’assistance est disponible 7 jours par semaine, 24 heures par jour et 365 jours par année. ¿Preguntas? Nuestros expertos están a su disposición a través de nuestra línea de ayuda gratuita, para brindarle asistencia con el ensamblaje, y, si es necesario, para reemplazar las partes dañadas/perdidas. La asistencia está disponible los 7 días de la semana, las 24 horas del día, los 365 días del año. NO NEED TO RETURN TO STORE! Contact us at: www.tsicustomerservice.com for troubleshooting and tech- nical support. 1-866-661-1218 Please have your store receipt, instruction manual, and part number ready when you call. UN SERVICE À LA CLIENTÈLE FIABLE! NO ES NECESARIO DE- VOLVERLO A LA TIENDA! Contactez-nous au: www.tsicustomerservice.com pour le service de dépannage et de soutien technique. Comuníquese con nosotros en: www.tsicustomerservice.com para solución de problemasy soporte técnico. Veuillez avoir en main, avant de nous cont…

Text truncated - open the document above for the full version.

Cover Letter(s)

SCS-F19: Confidentiality Request Letter Page 1 of 2 Rev 3.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Confidentiality Request Letter Revision History Reason for Amendment (current / obsolete) From To Approved Date Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Adding CFR 2.459 (obsolete) 1.0 2.0 August – 11 - 2008 Updated company template & Added text box (current) 2.0 3.0 Jan-31-2012

Cover Letter(s)

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 5.0 775 Montague Expressway Milpitas, CA 95035 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Revision History Reason for Amendment (current / obsolete) From To Approved Date Initial Release (obsolete) 1.0 1.0 Nov-14-2006 Revised wording (obsolete) 1.0 2.0 Sept–25-2007 Updated company template (obsolete) 2.0 3.0 Jan-31-2012 Updated letter information (obsolete) 3.0 4.0 May-23-2014 Added FCC ID field (current) 4.0 5.0 Sept 16 2014

External Photos

Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006

ID Label/Location Info

QCD-TS-4006 154.0 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Label Location

Internal Photos

Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 BT Chip BT Antenna Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006

RF Exposure Info

Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 RF EXPOSURE EVALUATION EUT Specification EUT SOUND SYSTEM Frequency band (Operating) WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.32GHz / 5.50GHz ~ 5.70GHz WLAN: 5.745GHz ~ 5825GHz Others(Bluetooth: 2.402GHz ~ 2.480GHz) Device category Portable (<20cm separation) Mobile (>20cm separation) Others ___ Antenna diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Max. output power 5.45dBm(3.51mW) For BLE; 2.18dBm(1.65mW) For BT 2.1+EDR Antenna gain 0dBi (declared by manufacturer) Evaluation applied MPE Evaluation SAR Evaluation Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 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 the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. Measurement Result Channel Channel Frequency (MHz) Max Output power (dBm) ToleranceMax Tune-UP power (mW) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/cm 2 ) For BLE GFSK Low 2402.00 1.22 ±0.1 1.36 2.70e-4 1 Middle 2442.00 3.68 ±0.1 2.39 4.75e-4 1 High 2480.00 5.45 ±0.1 3.59 7.14e-4 1 For BT2.1+EDR GFSK Low 2402.00 -3.50 ±0.1 0.46 9.09e-5 1 Middle 2441.00 0.52 ±0.1 1.15 2.29e-4 1 High 2480.00 2.18 ±0.1 1.69 3.36e-4 1 π/4-DQPSK Low 2402.00 -3.96 ±0.1 0.41 8.18e-5 1 Middle 2441.00 0.01 ±0.1 1.03 2.04e-4 1 High 2480.00 1.68 ±0.1 1.51 3.00e-4 1 8DPSK Low 2402.00 -3.99 ±0.1 0.41 8.12e-5 1 Middle 2441.00 0.05 ±0.1 1.04 2.06e-4 1 High 2480.00 1.70 ±0.1 1.51 3.01e-4 1

Test Report

Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F-1 FCC ID: QCD-TS-4006 Page 2 of 32 Table of Contents 1. GENERAL INFORMATION ................................................................................................ 4 1.1 P RODUCT D ESCRIPTION FOR E QUIPMENT UNDER T EST .................................................................... 4 1.2 R ELATED S UBMITTAL ( S ) / G RANT ( S ) ................................................................................................ 4 1.3 T EST M ETHODOLOGY ....................................................................................................................... 5 1.4 E QUIPMENT M ODIFICATIONS ............................................................................................................ 5 1.5 S UPPORT D EVICE ............................................................................................................................ 5 1.6 T EST F ACILITY AND L OCATION .......................................................................................................... 6 1.7 S UMMARY OF T EST R ESULTS ........................................................................................................... 6 2. SYSTEM TEST CONFIGURATION.................................................................................... 7 2.1 EUT C ONFIGURATION ...................................................................................................................... 7 2.2 S PECIAL A CCESSORIES .................................................................................................................... 7 2.3 D ESCRIPTION OF TEST MODES ......................................................................................................... 7 2.4 EUT E XERCISE ................................................................................................................................7 3. CONDUCTED EMISSIONS TEST ...................................................................................... 8 3.1 T EST SET-UP (B LOCK D IAGRAM OF C ONFIGURATION )..................................................................... 8 3.2 T EST C ONDITION ............................................................................................................................. 8 3.3 M EASUREMENT R ESULTS ................................................................................................................. 8 4. MAX. CONDUCTED OUTPUT POWER........................................................................... 11 4.1 M EASUREMENT P ROCEDURE ......................................................................................................... 11 4.2 T EST SET-UP (B LOCK D IAGRAM OF C ONFIGURATION )................................................................... 11 4.3 M EASUREMENT R ESULTS ............................................................................................................... 12 5. 6DB & 20DB BANDWIDTH .............................................................................................. 14 5.1 M EASUREMENT P ROCEDURE ......................................................................................................... 14 5.2 T EST SET-UP (B LOCK D IAGRAM OF C ONFIGURATION )................................................................... 14 5.3 M EASUREMENT R ESULTS ............................................................................................................... 14 6. POWER SPECTRAL DENSITY ....................................................................................... 18 6.1 M EASUREMENT P ROCEDURE ......................................................................................................... 18 6.2 T EST SET-UP (B LOCK D IAGRAM OF C ONFIGURATION )................................................................... 18 6.3 M EASUREMENT R ESULTS ............................................................................................................... 18 7. BAND EDGE AND CONDUCTED SPURIOUS EMISSIONS ........................................... 21 7.1 R EQUIREMENT AND M EASUREMENT P ROCEDURE ........................................................................... 21 7.2 T EST SET-UP (B LOCK D IAGRAM OF C ONFIGURATION )................................................................... 21 7.3 M EASUREMENT R ESULTS ............................................................................................................... 21 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F-1 FCC ID: QCD-TS-4006 Page 3 of 32 8. RADIATED SPURIOUS EMISSIONS AND RESTRICTED BANDS ................................ 26 8.1 T EST SET-UP (B LOCK D IAGRAM OF C ONFIGURATION )................................................................... 26 8.2 M EASUREMENT P ROCEDURE ......................................................................................................... 27 8.3 L IMIT .............................................................................................................................................. 28 8.4 M EASUREMENT R ESULTS ..................................................................................................... 29 9. ANTENNA APPLICATION ............................................................................................... 31 9.1 A NTENNA REQUIREMENT ................................................................................................................ 31 9.2 M EASUREMENT R ESULTS ............................................................................................................... 31 10. TEST EQUIPMENT LIST................................................................................................ 32 Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F-1 FCC ID: QCD-TS-4006 Page 4 of 32 1. GENERAL INFORMATION 1.1 Product Description for Equipment under Test Item BT2.1+EDR BLE(V4.0) Frequency 2402-2480MHz 2402-2480MHz Modulation GFSK, π/4-DQ…

Text truncated - open the document above for the full version.

Test Setup Photos

Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Conducted Emission Dongguan Nore Testing Center Co., Ltd. Report No.: NTC1505010F/-1 FCC ID: QCD-TS-4006 Radiated Emission

Contact Information

Applicant

Dale Duan(Manager)
[email protected]008676988618668Fax: 008676985424504

Test Firm

Dongguan NTC Co.,Ltd.,sunm lv sunm lv
[email protected]86-769-22022444

Technical Specifications

#Rule PartsFrequency RangePower Output
115C2.40 GHz - 2.48 GHz3.50 mW
Confidentiality
Long Term
Grant Notes
Power listed is the maximum conducted output power. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter, except in accordance with FCC multi- transmitter product procedures. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.

Other Applications from Twin-Star International Inc.

Electric Fireplace - FCC ID QCD-DI059 - Twin-Star International Inc.
QCD-DI059

Electric Fireplace

May 14, 2026

Equipment Class

DTS - Digital Transmission System
Electric Fireplace - FCC ID QCD-24II552 - Twin-Star International Inc.
QCD-24II552

Electric Fireplace

May 12, 2026

Equipment Class

DTS - Digital Transmission System
QCD-TS-S-PL01

Speaker

Apr 14, 2024

Equipment Class

DSS - Part 15 Spread Spectrum Transmitter
QCD-BDSW-1650

WIRELESS SUBWOOFER ADAPTER

Oct 21, 2015

Equipment Class

DXX - Part 15 Low Power Communication Device Transmitter
QCD-TS-1806

SOUND SYSTEM

Jul 28, 2015

Equipment Class

DTS - Digital Transmission System