2ACF2M2000MKIVProfessional speaker system

FCC Certification Requirements Caution: Any changes or modifications in construction of this device which are not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications 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 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.

NINGBO RIXING ELECTRONICS CO.,LTD INDUSTRIAL ZONE, WUXIANG TOWN, NINGBO,CHINA Confidentiality Request Letter Page 1 of 1 Rev 2.0 March 31, 2015 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD Permanent Confidentiality Request Confidentiality Request regarding application for certification of FCC ID:2ACF2M2000MKIV We hereby request confidential treatment of information accompanying this application as outlined below: - Block Diagram - Operational Description - Schematic The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 & 0.459 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Client’s signature: Client’s name / title: tangjingfei/ Manager Contact information / address: INDUSTRIAL ZONE, WUXIANG TOWN, NINGBO,CHINA TEL: 0086-0574-88333849 FAX: 0086-0574-88333500 E-mail: [email protected]

External Photo

FCC Certification Label FCC ID:2ACF2M2000MKIV Label Location on EUT label size:high 1cm, Wide:3 cm EUT View/ FCC ID Label Location

Internal Photo Antenna

Conducted emissions test Radiated emissions test