2A7F8-TTS-10LASER ENGRAVER

Shenzhen TwoTrees Technology Co., Ltd.Agent Authorization Company: Shenzhen TwoTrees Technology Co., Ltd. Address: Room 402,Building 11,No.9 Qilin Road,Nankeng Community Bantian Street,Longgang District,Shenzhen,China Product Name: LASER ENGRAVER Model Number(s): TTS-10, TTS-55, TTS-25 Product Description: LASER ENGRAVER 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: 2022-6-21 Name: Zijia Ouyang Title: PM Company: Shenzhen TwoTrees Technology Co., Ltd.

Differences Description We Shenzhen TwoTrees Technology Co., Ltd.state: Product： LASER ENGRAVER Model Name： S27，M01, M02, M03, M07, M08, M11, M20, M30, R5, R6, R7, R8, R9, S10, S20, S21, S22, S28, S29, S30, S31, S32, S50, S60, S70, S80, X08, X09, X10, X21, X22, X23, X27 Brand Name： N/A FCC ID： 2A7F8-TTS-10 The electrical circuit design, layout, components used and internal wiring for above models are identical, Only the difference in the model name. Signatory Signature: Date: 2022.6.21 Name: Zijia Ouyang Title: PM Company: Shenzhen TwoTrees Technology Co., Ltd.

Shenzhen TwoTrees Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2022.6.21 Subject; Request for Confidentiality FCC ID: 2A7F8-TTS-10 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 Operational Description SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES 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. Signature: Date: 2022-6-21 Name: Zijia Ouyang Title: PM Company: Shenzhen TwoTrees Technology Co., Ltd.

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 4 Product Name: LASER ENGRAVER Model No.: TTS-10 EUT Constructional Details External Photo Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 4 Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 4 Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 4 of 4 ------End------

FCC ID : Label and Location Size: L: 3.0cm*W: 2.0cm Label and Location Model No.: FCC ID : TTS-10 LASER ENGRAVER 2A7F8-TTS-10 2A7F8-TTS-10

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 3 Product Name: LASER ENGRAVER Model No.: TTS-10 EUT Constructional Details Internal Photo Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 3 Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 3 ------End------

RF Exposure evaluation FCC ID: 2A7F8-TTS-10 Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Mobile Device 1. Reference According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 D01: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 2. Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 1842/f 61.4 / / 1.63 4.89/f 0.163 / / (100) * (900/f 2 )* 1.0 f/300 5 6 6 6 6 6 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density (mW/cm²) Averaging Time (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 3.0 – 30 30 – 300 300 – 1500 1500 – 100,000 614 824/f 27.5 / / 1.63 2.19/f 0.073 / / (100) * (180/f 2 )* 0.2 f/1500 1.0 30 30 30 30 30 F=frequency in MHz *=Plane-wave equivalent power density 3. MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna 4. Antenna Information PANTHER-X2 can only use antennas certificated as follows provided by manufacturer; Antenna No. Model No. of antenna: Type of antenna: Gain of the antenna (Max.) Frequency range: BLE/BT/2.4GWIFI / Internal ANT 3.00 dBi for 2400-2500MHz; 5. Manufacturing Tolerance [Bluetooth] GFSK (BT – BR+EDR) (Peak) DH5 Channel Channel 1 Channel 40 Channel 79 Target (dBm) -11.0 -11.0 -11.0 Tolerance ±(dB) 1.0 1.0 1.0 2DH5 Channel Channel 1 Channel 40 Channel 79 Target (dBm) -9.0 -9.0 -9.0 Tolerance ±(dB) 1.0 1.0 1.0 3DH5 Channel Channel 1 Channel 40 Channel 79 Target (dBm) -9.0 -9.0 -9.0 Tolerance ±(dB) 1.0 1.0 1.0 [Bluetooth] GFSK (BT - LE) (Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) -12.0 -12.0 -12.0 Tolerance ±(dB) 1.0 1.0 1.0 [2.4GHz WLAN] IEEE 802.11b (Peak) Frequency (MHz) 2412 2437 2462 Target (dBm) 22.5 22.5 22.5 Tolerance ± (dB) 1.0 1.0 1.0 IEEE 802.11g (Peak) Frequency (MHz) 2412 2437 2462 Target (dBm) 22.0 22.0 22.0 Tolerance ± (dB) 1.0 1.0 1.0 IEEE 802.11n HT20 (Peak) Frequency (MHz) 2412 2437 2462 Target (dBm) 22.0 22.0 22.0 Tolerance ± (dB) 1.0 1.0 1.0 6. Standalone MPE Result As declared by the Applicant, the EUT is a wireless device used in a fix application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum separation distance, r =20cm, as well as the gain of the used antenna is 3dBi for 2.4Gwifi, the RF power density can be obtained. Modulation Type Output power Antenna Gain (dBi) Antenna Gain (linear) MPE (mW/cm 2 ) MPE Limits (mW/cm 2 ) dBm mW BLE 2402MHz -11.00 0.079 3.00 1.9953 0.00003 1 2.4GWIFI 2412MHz 23.50 223.872 3.00 1.9953 0.08891 1 BR+EDR 2480MHz -8.00 0.158 3.00 1.9953 0.00006 1 Remark: 1. Output power (Peak) including turn-up tolerance; 2. MPE evaluate distance is 20cm from user manual provide by manufacturer. 7. simultaneous MPE Result Not Applicable 8. Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. ----------------THE END OF REPORT---------------

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202206175F02 This results 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. Page 1 of 45 TEST Report Applicant: Shenzhen TwoTrees Technology Co., Ltd. Address of Applicant: Room 402,Building 11,No.9 Qilin Road,Nankeng Community Bantian Street,Longgang District,Shenzhen,China Manufacturer : Shenzhen TwoTrees Technology Co., Ltd. Address of Manufacturer : Room 402,Building 11,No.9 Qilin Road,Nankeng Community Bantian Street,Longgang District,Shenzhen,China Equipment Under Test (EUT) Product Name: LASER ENGRAVER Model No.: TTS-10 Series model: TTS-55, TTS-25 Trade Mark: N/A FCC ID: 2A7F8-TTS-10 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: Jun.09,2022 Date of Test: Jun.09,2022~Jun.15,2022 Date of report issued: Jun.15,2022 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: HTT202206175F02 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 2 of 45 1. Version Version No. Date Description 00 Jun.15,2022 Original Tested/ Prepared By Date: Jun.15,2022 Project Engineer Check By: Date: Jun.15,2022 Reviewer Approved By : Date: Jun.15,2022 Authorized Signature Report No.: HTT202206175F02 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 3 of 45 2. Contents Page 1. VERSION .................................................................................................................................................. 2 2. CONTENTS .............................................................................................................................................. 3 3. TEST SUMMARY ..................................................................................................................................... 4 4. GENERAL INFORMATION ...................................................................................................................... 5 4.1. GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 4.2. TEST MODE ........................................................................................................................................ 7 4.3. DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 4.4. DEVIATION FROM STANDARDS ............................................................................................................. 7 4.5. ABNORMALITIES FROM STANDARD CONDITIONS.................................................................................... 7 4.6. TEST FACILITY .................................................................................................................................... 7 4.7. TEST LOCATION .................................................................................................................................. 7 4.8. ADDITIONAL INSTRUCTIONS ................................................................................................................. 7 5. TEST INSTRUMENTS LIST ..................................................................................................................... 8 6. TEST RESULTS AND MEASUREMENT DATA ...................................................................................... 9 6.1. CONDUCTED EMISSIONS ..................................................................................................................... 9 6.2. CONDUCTED PEAK OUTPUT POWER .................................................................................................. 12 6.3. 20DB EMISSION BANDWIDTH ............................................................................................................. 13 6.4. FREQUENCIES SEPARATION .............................................................................................................. 17 6.5. HOPPING CHANNEL NUMBER ............................................................................................................. 19 6.6. DWELL TIME ..................................................................................................................................... 21 6.7. BAND EDGE ...................................................................................................................................... 26 6.7.1. Conducted Emission Method ..................................................................................................... 26 6.7.2. Radiated Emission Method ........................................................................................................ 30 6.8. SPURIOUS EMISSION......................................................................................................................... 32 6.8.1. Conducted Emission Method ..................................................................................................... 32 6.8.2. Radiated Emission Method ........................................................................................................ 37 7. TEST SETUP PHOTO ............................................................................................................................ 45 8. EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 45 Report No.: HTT202206175F02 Sh…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 2 Product Name: LASER ENGRAVER Model No.: TTS-10 Test Setup Photo Radiated Emission Report No.: HTT202206175 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 2 Conducted Emission ------End------