
Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.
USER MANUAL USER MANUAL Sound Processor 4-CHANNEL DSP CONTROLLED BY A WIRELESS (BT) CONNECTION TPT-SP4BT 2 Introduction Thank you for choosing a TIMPANO product! The TPT-SP4BT is a digital audio processor that offers a variety of high- precision adjustments and settings to enhance the performance of your audio system. Through Bluetooth communication, the processor’s information can be viewed and configured remotely using smartphones with Android or iOS systems. Its digital signal processor (DSP) allows real-time modification of equalizations, crossover filters, alignment, gain control, phase inversion, limiter, digital input/output routing, and other treatments. Its exclusive sequencer feature (SEQUENCER) makes it possible to configure the programmed startup and shutdown of up to three products from the remote startup connections (S1, S2, and S3). Before installing Please read this manual carefully. ▪ All connections must be made with the product turned OFF. ▪ A fuse must be installed between the amplifier and the battery is required to protect against overcurrent. The fuse needs to be installed as close to the battery as possible. Choose an appropriate fuse for the amplifier based on its consumption. ▪ Use the wire recommended in this manual to keep cables from overheating cables and to obtain maximum power. ▪ Keep the cables as short as possible to increase sound fidelity and avoid potential power losses. ▪ Route the installation cables as far away as possible from the original vehicle wiring to prevent interference and noise in your audio system. 3 Features ▪ Graphic input equalizer (15 bands and equalization presets); ▪ Input parametric equalizer (frequency, gain, Q factor); ▪ Parametric equalizer per output (frequency, gain, Q factor); ▪ Routing between inputs and outputs; ▪ High precision crossover with Butterworth and Linkwitz-Riley filters and attenuations up to 36 dB/8th; ▪ High-precision alignment/delay; ▪ Phase inversion; ▪ Limiter with Threshold, Attack and Release adjustment; ▪ Independent gain and mute per output and master volume; ▪ Working memory with automatic saving of settings; ▪ Allows saving and loading the settings made by the user; Security password to block modification of the parameters; ▪ Frequency generator, frequency sweep and pink noise; ▪ Outputs for remote triggering with configurable interval; ▪ Battery monitoring; ▪ Limiter actuation monitoring; ▪ OAD update (over the air download); If you have questions , contact the store where the purchase or installation was done. For more information please contact our Customer Service: (954) 859-5529 ▪ Perform the installation on a firm surface in a ventilated and dry place. ▪ Installation should only be done by a qualified professional. 4 Audio Processor TPT-SP4BT 1. REMOTE OUT / SEQUENCER: This feature allows sequenced startup of other products through your remote connection (REM). Make the connection using a minimum 18 AWG cable. Each connection can be configured, enabled or disabled by the application or SMC control. 2. REM IN: Use this connection for automatic processor activation when turning on the radio/player. Connect the remote output of the radio/ player through a cable of at least 18 AWG. 3. NEGATIVE POWER CONNECTOR (GND): Connect to the negative terminal of the battery through a minimum 13 AWG cable. Processor Overview 67109811 12345 5 4. POSITIVE POWER CONNECTOR (+BAT): Connect to the positive battery terminal using a minimum 13 AWG cable. It is recommended to use a 1A fuse for external protection. 5. SERVICE CONNECTION: Dedicated connection for authorized support services and updates. 6. AUDIO INPUT WITH WIRE CONNECTION (HIGH INPUT): HIGH INPUT type audio connection with independent action (A and B). Check this manual for the installation diagram for the radio/player harness. 7. AUDIO INPUT WITH RCA CONNECTION (INPUT): Double type RCA connectors with independent actuation (A and B). Connect to the audio output of the radio/player via RCA cables. Give preference to quality shielded cables to avoid noise. 8. MAX LEDs (INPUT CHANNELS): These LEDs act individually to indicate signal saturation on the input channels. 9. POWER LED / COMMAND BUTTON: Used to reset processor settings and updates. See topic “Reset factory settings”. 10. AUDIO OUTPUTS CHANNELS (OUTPUT): Individual RCA output connections provide the audio processed with the parameters performed in the processor. 11. LIMITER LEDs (OUTPUT CHANNELS): These LEDs actuate when the “LIMITER” function is in use. Each channel has a dedicated LED for visualization of the actuation individually. The LEDs also act as output saturation indicators. 6 SEQUENCER Outputs for remote acti vati on Batt ery Install it close to the batt ery (12” max.) Radio / Player TIMPANO - B - A INPUT A INPUT B HIGH INPUT (AUTO TURN ON) BLUE WIRE WIRE GRAY AUDIO OUTPUT S3 S2 S1 Installation Specifi cati on of the cables and fuse for proper installati on: ▪ Power connectors (positi ve/negati ve) ................................. ▪ Remote connectors (REM IN / REM OUT ) .......................... ▪ Fuse ...................................................................................... 13 AWG 18 AWG 1A POWER SUPPLY 13 AWG cables Fuse 1A REM 18 AWG cable REM (remote) INPUT A B + A + B Ground ▪ Installati on must be done only by qualifi ed professionals with the product turned OFF. ▪ The use of fuse is mandatory to protect the system from short circuit and overload. Install them as close to the batt ery as possible. 7 Minimum requirements ▪ Devices with Android system from version 5.0 and Bluetooth technology 4.0 or higher; ▪ Devices with iOS system from version 12, with Bluetooth technology 4.0 or higher. AUTO TURN-ON It provides the automati c acti vati on of the processor through the signal present in the HIGH INPUT. If the signal level of your radio is not suffi cient or when using the RCA connecti on, the acti vati on must be done by the remote input (REM IN). Using the Applicat…
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Rev 1/26/2023 STETSOM ELECTRONICS USA INC. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05-11-2026 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2BBF7-TPT-SP4BT STETSOM ELECTRONICS USA INC. (“the applicant”) certifies that, as of the date of the filing of the application, we designate ourselves as the U.S. agent for service of process. Designated U.S. Agent Information: FRN: 0033839143 Name: STETSOM ELECTRONICS USA INC. Address: 66 WEST FLAGLER ST STE 900/7434, MIAMI, FLORIDA, USA Contact Person: Fernando Kanada Tel.: (786) 743-0031 Email: [email protected] Sincerely, STETSOM ELECTRONICS USA INC. Fernando Kanada
STETSOM ELECTRONICS USA INC. Date: 06‐10‐2026 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID 2BBF7‐TPT‐SP4BT [STETSOM ELECTRONICS USA INC.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber‐security or anti‐virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, Fernando Kanada STETSOM ELECTRONICS USA INC. Date: 06‐10‐2026 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for FCC ID 2BBF7‐TPT‐SP4BT [STETSOM ELECTRONICS USA INC.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Fernando Kanada
STETSOM ELECTRONICS USA INC. Date: May 11, 2026 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BBF7-TPT-SP4BT Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Long-term confidentiality: Schematics Block Diagram Operational Description Schematics.pdf Block Diagram.pdf Operational Description.pdf 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 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, STETSOM ELECTRONICS USA INC. Fernando Kanada / Project Coordinator
STETSOM ELECTRONICS USA INC. FCC ID: 2BBF7-TPT-SP4BT POWER OF ATTORNEY Date: May 11, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Testing Group Co., Ltd. (Deval Qin) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group Co., Ltd. (Deval Qin) on our behalf shall have the same effect as acts of our own. This authorization expires on May 11, 2027. Sincerely, STETSOM ELECTRONICS USA INC. Fernando Kanada / Project Coordinator
Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 3 of 8 2. Photographs –Constructional Details 2.1. EUT – External View Model TPT-SP4BT FCC ID: 2BBF7-TPT-SP4BT Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 4 of 8 Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 5 of 8
Label and Label Location
Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 6 of 8 2.2. EUT – Internal View Model TPT-SP4BT FCC ID: 2BBF7-TPT-SP4BT Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 7 of 8 Antenna Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 8 of 8 ======End======
Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Page 1 of 8 TEST REPORT Referen ce No. .................... : WTD26D03060467W003 FCC ID ................................ : 2BBF7-TPT-SP4BT Applicant ............................ : STETSOM ELECTRONICS USA INC. Address .............................. : 66 WEST FLAGLER ST STE 900/7434, MIAMI, FLORIDA, USA Manufacturer .................... : STETSOM ELECTRONICS USA INC. Address .............................. : 66 WEST FLAGLER ST STE 900/7434, MIAMI, FLORIDA, USA Product ............................... : Sound Processor Model(s). ............................ : TPT-SP4BT Standards........................... : FCC 47CFR Part 2 Subpart J Section 2.1091 Date of Receipt Sample .... : 2026-03-26 Date of Test ....................... : 2026-04-13 to 2026-04-30 Date of Issue ...................... : 2026-06-03 Test Result ......................... : Pass Remarks: The res ults shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group Co., Ltd. Address: No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China Tel: +86-769-2267 6998 Fax: +86-769-2267 6828 Compiled by: Approved by: Frank Yin / Pro ject Engineer Deval Qin/ Designated Reviewer Reference No.: WTD26D03060467W003 Page 2 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 2. Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2. CONTENTS ............................................................................................................................................... 2 3. REVISION HISTORY ................................................................................................................................. 3 4. GENERAL INFORMATION ....................................................................................................................... 4 4.1. GENERAL DESCRIPTION OF E.U.T.................................................................................................... 4 4.2. DETAILS OF E.U.T. ......................................................................................................................... 4 4.3. TEST FACILITY ................................................................................................................................ 5 4.4. SUBCONTRACTED ........................................................................................................................... 5 4.5. ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................ 5 5. TEST SUMMARY ...................................................................................................................................... 6 6. RF EXPOSURE ......................................................................................................................................... 7 6.1. REQUIREMENTS .............................................................................................................................. 7 6.2. THE PROCEDURES / LIMIT ................................................................................................................ 7 6.3. MPE CALCULATION METHOD........................................................................................................... 8 6.4. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ................................................................... 8 Reference No.: WTD26D03060467W003 Page 3 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 3. Revision History Test Report No. Date of Receipt Sample Date of Test Date of Issue Purpose Comment Approved WTD26D03060467W003 2026-03-26 2026-04-13 to 2026-04-30 2026-06-03 Original - Valid Reference No.: WTD26D03060467W003 Page 4 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 4. General Information 4.1. General Description of E.U.T. Product: Sound Processor Model(s): TPT-SP4BT Model Description: N/A Test Sample No.: 1-1/1 Bluetooth Version: Bluetooth 4.2 Low Energy Hardware Version: SCH_R2F – PCB_R2C Software Version: 1.5 4.2. Details of E.U.T. Operation Frequency: 2402~2480MHz Max. RF output power: 1.30dBm Modulation Technology: GFSK Antenna installation: PCB Antenna Antenna Gain: 3.3dBi Note: #: The antenna gain is provided by the applicant, and the applicant should be responsible for its authenticit y, WALTEK lab has not verified the authenticity of its information. Ratings: Power Supply:10V~15VDC Reference No.: WTD26D03060467W003 Page 5 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 4.3. Test Facility The test facility has a test site registered with the following organizations: ISED CAB identifier: CN0013. Test Firm Registration No.: 7760A. Waltek Testing Group Co., Ltd. Has been registered and fully described in a report filed with the Industry Canada. The acceptance letter from the Industry Canada is maintained in our files. Registration number 7760A, October 15, 2016. FCC Designation No.: CN1201. Test Firm Registration No.: 523476. Waltek Testing Group Co., Ltd. EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. Registration number 523476, September 10, 2019. 4.4. Subcontracted Whether parts of tests for the product have been subcontracted to other labs: Yes No If Yes, list the related test items and lab information: Test Lab: N/A Lab address: N/A Test items: N/A 4.5. Abnormalities from Standard Conditions None. Reference No.: WTD26D03060467W003 Page 6 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 5. Test…
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Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Pa ge 1 of 28 TEST REPORT Referen ce No. .................... : WTD26D03060467W002 FCC ID ................................ : 2BBF7-TPT-SP4BT Applicant ............................ : STETSOM ELECTRONICS USA INC. Address .............................. : 66 WEST FLAGLER ST STE 900/7434, MIAMI, FLORIDA, USA Manufacturer .................... : STETSOM ELECTRONICS USA INC. Address .............................. : 66 WEST FLAGLER ST STE 900/7434, MIAMI, FLORIDA, USA Product ............................... : Sound Processor Model(s). ............................ : TPT-SP4BT Standards........................... : FCC 47CFR Part 15.247 Date of Receipt Sample .... : 2026-03-26 Date of Test ....................... : 2026-04-13 to 2026-04-30 Date of Issue ...................... : 2026-06-03 Test Result ......................... : Pass Remarks: The res ults shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group Co., Ltd. Address: No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China Tel: +86-769-2267 6998 Fax: +86-769-2267 6828 Compiled by: Approved by: Frank Yin / Pro ject Engineer Deval Qin/ Designated Reviewer Reference No.: WTD26D03060467W002 Page 2 of 28 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 2 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 CONTENTS ............................................................................................................................................... 2 3 REVISION HISTORY ................................................................................................................................. 3 4 GENERAL INFORMATION ....................................................................................................................... 4 4.1 General Description of E.U.T. ....................................................................................................... 4 4.2 Details of E.U.T. ............................................................................................................................ 4 4.3 Channel List .................................................................................................................................. 4 4.4 Test Facility ................................................................................................................................... 5 4.5 Subcontracted ............................................................................................................................... 5 4.6 Abnormalities from Standard Conditions ...................................................................................... 5 4.7 Test Mode ..................................................................................................................................... 5 5 TEST SUMMARY ...................................................................................................................................... 6 6 EQUIPMENT USED DURING TEST ......................................................................................................... 7 6.1 Equipments List ............................................................................................................................ 7 6.2 Description of Support Units ......................................................................................................... 8 6.3 Measurement Uncertainty ............................................................................................................ 8 6.4 Test Equipment Calibration .......................................................................................................... 8 7 RADIATED EMISSIONS ........................................................................................................................... 9 7.1 EUT Operation .............................................................................................................................. 9 7.2 Test Setup .................................................................................................................................. 10 7.3 Spectrum Analyzer Setup ........................................................................................................... 11 7.4 Test Procedure ........................................................................................................................... 12 7.5 Corrected Amplitude & Margin Calculation ................................................................................ 12 7.6 Summary of Test Results ........................................................................................................... 13 8 CONDUCTED SPURIOUS EMISSIONS ................................................................................................. 16 8.1 Test Procedure ........................................................................................................................... 16 8.2 Test Result .................................................................................................................................. 17 9 BAND EDGE MEASUREMENT .............................................................................................................. 20 9.1 Test Produce .............................................................................................................................. 20 9.2 Test Result .................................................................................................................................. 21 10 6 DB BANDWIDTH MEASUREMENT ...............................................…
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Application Report 2.4-GHz Inverted F Antenna ABSTRACT This document describes a printed-circuit board (PCB) antenna design that can be used with all 2.4-GHz transceivers and transmitters from Texas Instruments ™ . The maximum gain when used on the reference board is measured to be +3.3 dBi, and the overall size requirements for this antenna are 25.7 × 7.5 mm (not including ground plane). Table of Contents 1 Description of the antenna Design........................................................................................................................................2 2 Measurement Results.............................................................................................................................................................3 2.1 Radiation Pattern...............................................................................................................................................................3 2.2 Reflection.........................................................................................................................................................................10 2.3 Bandwidth.........................................................................................................................................................................11 3 Summary................................................................................................................................................................................11 4 References.............................................................................................................................................................................11 5 Revision History...................................................................................................................................................................12 Trademarks Texas Instruments ™ is a trademark of Texas Instruments. All trademarks are the property of their respective owners. www.ti.comTable of Contents SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna1 Copyright © 2021 Texas Instruments Incorporated 1 Description of the antenna Design It is important to make an exact copy of the antenna dimensions to obtain optimum performance. The easiest approach to implement the antenna in a PCB CAD tool is to import the antenna layout from a gerber file or a DXF file. Such files are included in CC2430DB reference design [1]. The gerber file is called Inverted_F_Antenna.spl and the DXF file is called Inverted_F_Antenna.dxf. If the antenna is implemented on a PCB that is wider than the antenna, avoid placing components or having a ground plane close to the end points of the antenna. If the CAD tool being used does not support importing gerber or DXF files, see Figure 1-1 and Table 1-1. The antenna impedance is tuned to 50 ohm on the reference board. The impedance will however be affected by different size and shape of the ground plane, objects in the antenna nearfield such as mechanical assemblies (housing, batteries, etc.), PCB thickness, PCB material and so on. It is therefore recommended to add a pi-network close to the antenna feedpoint for impedance matching. The results presented in this document are based on an antenna implemented on a PCB with a 1-mm thickness using standard FR-4 material. Figure 1-1. IFA Dimensions Table 1-1. IFA Dimensions H15.70 mmW20.46 mm H20.74 mmL125.58 mm H31.29 mmL216.40 mm H42.21 mmL32.18 mm H50.66 mmL44.80 mm H61.21 mmL51.00 mm H70.80 mmL61.00 mm H81.80 mmL73.20 mm H90.61 mmL80.45 mm W11.21 mm Description of the antenna Designwww.ti.com 22.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated 2 Measurement Results All of the results presented in this section are based on measurements performed with the CC2430DB [1] evaluation board. 2.1 Radiation Pattern Figure 2-1 shows how to relate all of the radiation patterns to the orientation of the antenna. The radiation patterns were measured with the CC2430 device programmed to 0-dBm output power. Figure 2-1. Relating Antenna to Radiation Patterns www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna3 Copyright © 2021 Texas Instruments Incorporated Figure 2-2 shows the XY plane vertical polarization. Figure 2-2. XY Plane–Vertical Polarization Measurement Resultswww.ti.com 42.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-3 shows the XY plane horizontal polarization. Figure 2-3. XY Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna5 Copyright © 2021 Texas Instruments Incorporated Figure 2-4 shows the XZ plane vertical polarization. Figure 2-4. XZ Plane–Vertical Polarization Measurement Resultswww.ti.com 62.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-5 shows the XZ plane horizontal polarization. Figure 2-5. XZ Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna7 Copyright © 2021 Texas Instruments Incorporated Figure 2-6 shows the YZ plane vertical polarization. Figure 2-6. YZ Plane–Vertical Polarization Measurement Resultswww.ti.com 82.4-GHz Inverted F AntennaSWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Figure 2-7 shows the YZ plane horizontal polarization. Figure 2-7. YZ Plane–Horizontal Polarization www.ti.comMeasurement Results SWRU120D – APRIL 2007 – REVISED JANUARY 2019 Submit Document Feedback 2.4-GHz Inverted F Antenna9 Copyright © 202…
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Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 1 of 8 1. Test Setup photos Model TPT-SP4BT FCC ID: 2BBF7-TPT-SP4BT 1.1 Photograph – Radiated Emissions For 9kHz-30MHz Test Site 2# For 30MHz-1000MHz Test Site 2# Appendix- TPT-SP4BT -Photos Reference No.: WTD26D03060467WPage 2 of 8 For Above 1GHz Test Site 1#
66 WEST FLAGLER ST STE 900/7434, · MIAMI · United States
| # | Rule Parts | Frequency Range | Power Output |
|---|---|---|---|
| 1 | 15C | 2.40 GHz - 2.48 GHz | 1.35 mW |

DIGITAL AUDIO PROCESSOR
Equipment Class
DTS - Digital Transmission System
Remote control
Equipment Class
DSC - Part 15 Security/Remote Control Transmitter