2BB7I-TST1CTennis training machine

02 /Product parameter 03 /Inventory ��V DC lithium battery ���V AC Lithium battery charger ��W Power supply Power Ball capacity ���Frequencyball�-�� s/ball Lithium battery capacity �����mAHweight≤��kg Serve highly �.�~�meterServe distance ≤��m Folded size (Length*Width*Height) Unfolded size (Length*Width*Height) ��cm*��cm*��cm ��cm*��cm*��cm Dana intelligent tennis trainer x� Remote battery x� Remote x� Power charger x� Product manual x� 04 /How to use the equipment Turn on the power button, as shown below: 1 Start up 2 Remote control Power switch Check whether there are too many balls stuck above the turntable drop ball failure The ball is stuck and does not enter the channel It is prohibited to use equipment when tennis court is watery or it is rainy, wet ball may cause stuck. 06 /matters need attention To avoid injury,do not stand in front of the ball outlet while the machine is running. If the ball is driven into the machine accidentally,turn off the power and then take the ball out. Be sure to turn off power while cleaning the equipment,otherwise it may cause in danger. Periodically clean the debris inside the equipment. It needs to be charged in time,the battery life will be affected if it is not charged for a long time. Note: If you disassemble the equipment by yourself, all consequences are at your own risk. Please be sure to observe the precautions specified in this manual and use the product correctly. Otherwise the failure or loss caused by your improper use will not be covered by the manufacturer's warranty,the manufacturer does not assume any relevant responsibility. Start again to verify that the driving wheel can be turned Remove the ball where stuck in the channel Ball stuck Ball stuck may caused by wet ball Abnormal rotation of the driving wheel 01 /Product components Storage box Telescoping handle Charging socket Power switch Fuse Battery compartment knob Three training modes are available for users to select 4 Enter the training mode Fixed-point practiceCross line practice Horizontal recirculating practiceVertical recirculating practice Users can select specific mode for customized tennis training System mode Users can set up any � drop points for tennis training Custom mode The equipment will randomly select the drop point For all modes: Users can adjust the ball frequency（�-��）、speed(��-���km/h)、angle(-��-��)、 topspin or backspin（-��-��）. Random mode Replace the fuse Select the right power Wrong selection of AC and DC power Decrease the speed by using the remote control Place the equipment in a suitable position to serve The equipment serves too fast The equipment is not placed in the correct position Use the same type of ball Different types of balls are selected Serve out of bounds The equipment does not serve fault phenomenon Reason of problems Equipment failure cause analysis and troubleshooting Solutions 05 /Exception handling Fuse broken or damaged Scan QR code, then install APP. 3 Mobile control Turn on the phone's Bluetooth and Internet connection, then as you see the bluetooth connection page, after the equipment is successfully connected, you can enter the training mode. IOSAndroid Dana intelligent tennis trainer DANA TST�C / TST�C Please read the instruction carefully before installing and using the product Please observe the warings and precautions marked in the product manual Product manual Angle increase Speed up Frequency increase Start Angle decrease Slow down Frequency decay Pause FCC Warnning: 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 againstharmful interference in a residential installation. This equipment generates, uses and can radiateradio frequency energy and, if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of thefollowing 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this 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. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

Shenzhen Dana Intelligent Equipment Co., Ltd Room 703, Block A, Building 12, Shenzhen Bay Science and Technology Ecological Park, Nanshan District, Shenzhen City, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023/07/21 U.S. Agent Designation Shenzhen Dana Intelligent Equipment Co., Ltd acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BB7I-TST1C): Name and company of U.S. agent: GSS SERVICE INC Physical U.S. address of agent: 6547 N Academy Blvd #226 Colorado USA FRN of U.S. agent: 0033402082 Email address of U.S. agent: [email protected] GSS SERVICE INC acknowledges their obligation to accept service of process on behalf of Shenzhen Dana Intelligent Equipment Co., Ltd Shenzhen Dana Intelligent Equipment Co., Ltd with the FRN [0034034488] accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature May Hu Manager Shenzhen Dana Intelligent Equipment Co., Ltd Signature Michoux Logan PM GSS SERVICE INC 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

FCC ID: 2BB7I-TST1C External Photos of the EUT Photo 1 Photo 2 Photo 3 FCC ID: 2BB7I-TST1C Photo 4 Photo 5 Photo 6 FCC ID: 2BB7I-TST1C Photo 7

Label and Location Size: L: 4.0cm*W: 3.0cm Label and Location Tennis training machine Model No.: TST1C FCC ID : 2BB7I-TST1C Caution : 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.

FCC ID: 2BB7I-TST1C Internal Photos of the EUT Photo 1 Photo 2 Photo 3 FCC ID: 2BB7I-TST1C Photo 4 Photo 5 Photo 6 Internal Antenna 433 receiving antenna FCC ID: 2BB7I-TST1C Photo 7 Photo 8 Photo 9 FCC ID: 2BB7I-TST1C Photo 10 Photo 11 Photo 12 FCC ID: 2BB7I-TST1C Photo 13 Photo 14 Photo 15 FCC ID: 2BB7I-TST1C Photo 16 Photo 17 Photo 18 FCC ID: 2BB7I-TST1C Photo 19 Photo 20 Photo 21 FCC ID: 2BB7I-TST1C Photo 22 Photo 23 Photo 24 FCC ID: 2BB7I-TST1C Photo 25 Photo 26

RF Exposure evaluation FCC ID: 2BB7I-TST1C 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 TST1C 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: BT / Internal antenna 1.32dBi for 2400-2500MHz; 5. Manufacturing Tolerance BT GFSK(Peak) Channel Channel 00 Channel 39 Channel 78 Target (dBm) 1.0 1.0 1.0 Tolerance ±(dB) 1.0 1.0 1.0 Π/4DQPSK (Peak) Channel Channel 00 Channel 39 Channel 78 Target (dBm) 1.0 1.0 1.0 Tolerance ±(dB) 1.0 1.0 1.0 BLE GFSK(Peak) Channel Channel 00 Channel 19 Channel 39 Target (dBm) 4.0 4.0 4.0 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 1.32dBi, 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 5.0 3.1623 1.32 1.3552 0.0009 1.0000 Remark: 1. Output power (Peak) including turn-up tolerance; 2. MPE evaluate distance is 20cm from user manual provide by manufacturer. 7. 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---------------

1. Antenna Description: 2. Antenna type Internal antenna Model TST1C Frequency range 2400-2500MHz Manufacturer Shenzhen Dana Intelligent Equipment Co., Ltd ANT Peak Gain 1.32 dBi 3. Antenna Photo: Length :616.0mm 3. Test Equipment & Conditions 3.1 Test instrument VSWR is tested using Agilent E5071B connected to a hand mechanism, and the status is free space. 3.2 Test environment and methods 4．Antenna Radiation Pattern 2400MHz 2450MHz 2500MHz

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID. ............................................ : CTA23062000802 2BB7I-TST1C Compiled by ( position+printed name+signature) .. : File administrators Zoey Cao Supervised by ( position+printed name+signature) .. : Project Engineer Amy Wen Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue ..................................... : Jul. 20, 2023 Testing Laboratory Name .............. : Shenzhen CTA Testing Technology Co., Ltd. Address ............................................ : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................ : Shenzhen Dana Intelligent Equipment Co., Ltd Address ............................................ : Room 703, Block A, Building 12, Shenzhen Bay Science and Technology Ecological Park, Nanshan District, Shenzhen City, China Test specification ...........................: Standard ........................................... : FCC Part 15.247 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: Tennis training machine Trade Mark ....................................... : DANA 大拿智能 Manufacturer .................................... : Shenzhen Dana Intelligent Equipment Co., Ltd Model/Type reference....................... : TST1C Listed Models .................................. : TST2C Modulation ....................................... : GFSK, Π/4DQPSK Frequency .......................................... From 2402MHz to 2480MHz Rating ............................................... : DC 25.2V From Battery and DC 25.2V From external circuit Result................................................ : PASS Report No.: CTA23062000802 Page 2 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test : Tennis training machine Model /Type : TST1C Listed Models : TST2C Applicant : Shenzhen Dana Intelligent Equipment Co., Ltd Address : Room 703, Block A, Building 12, Shenzhen Bay Science and Technology Ecological Park, Nanshan District, Shenzhen City, China Manufacturer : Shenzhen Dana Intelligent Equipment Co., Ltd Address : Room 703, Block A, Building 12, Shenzhen Bay Science and Technology Ecological Park, Nanshan District, Shenzhen City, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA23062000802 Page 3 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1 T E S T S T A N D A R D S ................................................................. 4 2 S U M M A R Y ............................................................................ 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Equipment Under Test 5 2.4 Short description of the Equipment under Test (EUT) 5 2.5 EUT operation mode 5 2.6 Block Diagram of Test Setup 6 2.7 Related Submittal(s) / Grant (s) 6 2.8 Modifications 6 3 T E S T E N V I R O N M E N T .............................................................. 7 3.1 Address of the test laboratory 7 3.2 Test Facility 7 3.3 Environmental conditions 7 3.4 Summary of measurement results 8 3.5 Statement of the measurement uncertainty 8 3.6 Equipments Used during the Test 9 4 T E S T C O N D I T I O N S A N D R E S U L T S ........................................... 10 4.1 AC Power Conducted Emission 10 4.2 Radiated Emission 13 4.3 Maximum Peak Output Power 19 4.4 20dB Bandwidth 20 4.5 Frequency Separation 23 4.6 Number of hopping frequency 25 4.7 Time of Occupancy (Dwell Time) 27 4.8 Out-of-band Emissions 30 4.9 Antenna Requirement 37 5 T E S T S E T U P P H O T O S O F T H E E U T ......................................... 38 6 P H O T O S O F T H E E U T ........................................................... 39 Report No.: CTA23062000802 Page 4 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 1 T E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. ANSI C63.10-2013: American National Standard for Testing Unlicensed Wireless Devices Report No.: CTA23062000802 Page 5 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 23…

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Report No.: CTA23062000802 Page 31 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn GFSK(CH00) GFSK(CH39) reference reference 30MHz-1G 30MHz-1G 1G-25G 1G-25G Report No.: CTA23062000802 Page 32 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn GFSK(CH78) π/4DQPSK (CH00) reference reference 30MHz-1G 30MHz-1G 1G-25G 1G-25G Report No.: CTA23062000802 Page 33 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn π/4DQPSK (CH39) π/4DQPSK (CH78) reference reference 30MHz-1G 30MHz-1G 1G-25G 1G-25G Report No.: CTA23062000802 Page 34 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Band-edge Measurements for RF Conducted Emissions: GFSK Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Report No.: CTA23062000802 Page 35 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn π/4DQPSK Left Band edge hoping off Right Band edge hoping off Left Band edge hoping on Right Band edge hoping on Report No.: CTA23062000802 Page 36 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Pseudorandom Frequency Hopping Sequence TEST APPLICABLE For 47 CFR Part 15C section 15.247 (a) (1) requirement: Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hop-ping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400–2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. The system shall hop to channel frequencies that are selected at the system hopping rate from a pseudo randomly ordered list of hopping frequencies. Each frequency must be used equally on the average by each transmitter. The system receivers shall have input bandwidths that match the hop-ping channel bandwidths of their corresponding transmitters and shall shift frequencies in synchronization with the transmitted signals. EUT Pseudorandom Frequency Hopping Sequence Requirement The pseudorandom frequency hopping sequence may be generated in a nice-stage shift register whose 5 th and 9 th stage outputs are added in a modulo-two addition stage. And the result is fed back to the input of the first stage. The sequence begins with the first one of 9 consecutive ones, for example: the shift register is initialized with nine ones. ● Number of shift register stages:9 ● Length of pseudo-random sequence:29-1=511 bits ● Longest sequence of zeros:8(non-inverted signal) An example of pseudorandom frequency hopping sequence as follows: Each frequency used equally one the average by each transmitter. The system receiver have input bandwidths that match the hopping channel bandwidths of their corresponding transmitter and shift frequencies in synchronization with the transmitted signals. Report No.: CTA23062000802 Page 37 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 4.9 Antenna Requirement Standard Applicable For intentional device, according to FCC 47 CFR Section 15.203, an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. And according to FCC 47 CFR Section 15.247 (c), if transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi. Refer to statement below for compliance The manufacturer may design the unit so that the user can replace a broken antenna, but the use of a standard antenna jack or electrical connector is prohibited. Further, this requirement does not apply to intentional radiators that must be professionally installed. Antenna Connected Construction The maximum gain of antenna was 1.32 dBi. Remark:The antenna gain is provided by the customer , if the data provided by the customer is not accurate, Shenzhen CTA Testing Technology Co., Ltd. does not assume any responsibility. Report No.: CTA23062000802 Page 38 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 5 T e s t S e t u p P h o t o s o f t h e E U T Report No.: CTA23062000802 Page 39 of 39 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 6 P h o t o s o f t h e E U T Reference to the test report No. CTA23062000801 ******…

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FCC ID: 2BB7I-TST1C Test Setup Photos of the EUT