2AU63-E3Smart visual ear-clean Rod

Heifeng Zhizao(Shenzhen)Technology Co., Ltd July 06, 2021 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Explanation of differences between product types FCC ID : 2AU63-E3 Model Number: E3, E3 SE, E3 SE-CC, E3S, E3Pro, E3Pro Max, E3-WM, W3, W3 SE, W3 SE-CC, W3S, W3Pro, W3Pro Max, W3-WM, bebird E3, bebird E3 SE, bebird E3 SE-CC, bebird E3S, bebird E3Pro, bebird E3Pro Max, bebird E3-WM To Whom It May Concern: We, The Heifeng Zhizao(Shenzhen)Technology Co., Ltd hereby declare that the models are identical except the model names and the color of appearance. Except for the different above, no other modification is performed. Sincerely, Signature: Heifeng Zhizao(Shenzhen)Technology Co., Ltd Contact person: Lin Xiansheng

Heifeng Zhizao(Shenzhen)Technology Co., Ltd Agent Authorization Company: Heifeng Zhizao(Shenzhen)Technology Co., Ltd Address: Rm 1205, Tongfang Center Building, Haoxiang Road, Xin'er Community, Xinqiao Subdistrict, Bao'an District, Shenzhen Product Name: Smart visual ear-clean Rod Model Number(s): E3, E3 SE, E3 SE-CC, E3S, E3Pro, E3Pro Max, E3-WM, W3, W3 SE, W3 SE-CC, W3S, W3Pro, W3Pro Max, W3-WM, bebird E3, bebird E3 SE, bebird E3 SE-CC, bebird E3S, bebird E3Pro, bebird E3Pro Max, bebird E3-WM Product Description: Smart visual ear-clean Rod 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: 2021-07-06 Name: Lin Xiansheng Company: Heifeng Zhizao(Shenzhen)Technology Co., Ltd

Heifeng Zhizao(Shenzhen)Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021-07-05 Subject; Request for Confidentiality FCC ID: 2AU63-E3 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 Parts List Operational Description Tune-up Procedure 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. Sincerely Heifeng Zhizao(Shenzhen)Technology Co., Ltd Contact person: Lin Xiansheng

External Photos TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT VIEW OF EUT (PORT)

FCC ID Label Location 3mm&15mm FCC ID: 2AU63-E3

Internal Photos OPEN VIEW OF EUT INTERNAL VIEW-1 OF EUT INTERNAL VIEW-2 OF EUT INTERNAL VIEW-3 OF EUT INTERNAL VIEW-4 OF EUT INTERNAL VIEW-5 OF EUT Antenna

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Smart visual ear-clean Rod Model Name E3, E3 SE, E3 SE-CC, E3S, E3Pro, E3Pro Max, E3-WM, W3, W3 SE, W3 SE-CC, W3S, W3Pro, W3Pro Max, W3-WM, bebird E3, bebird E3 SE, bebird E3 SE-CC, bebird E3S, bebird E3Pro, bebird E3Pro Max, bebird E3-WM FCC ID 2AU63-E3 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation 3. CALCULATION P t =7.63dBm=5.79mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(5.79mW /5mm) .[√2.462(GHz)]= 1.81<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 73 Report No.: AGC11477210601FE05 FCC ID : 2AU63-E3 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Smart visual ear-clean Rod BRAND NAME : bebird MODEL NAME : E3, E3 SE, E3 SE-CC, E3S, E3Pro, E3Pro Max, E3-WM, W3, W3 SE, W3 SE-CC, W3S, W3Pro, W3Pro Max, W3-WM, bebird E3, bebird E3 SE, bebird E3 SE-CC, bebird E3S, bebird E3Pro, bebird E3Pro Max, bebird E3-WM APPLICANT : Heifeng Zhizao(Shenzhen)Technology Co., Ltd DATE OF ISSUE : Jul. 05, 2021 STANDARD(S) TEST PROCEDURE(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd FCC Test Report Report No.: AGC11477210601FE05 Page 2 of 73 EPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jul. 05, 2021 Valid Initial Release Report No.: AGC11477210601FE05 Page 3 of 73 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY .................................................................................................................. 5 2. GENERAL INFORMATION .............................................................................................................................. 6 2.1. PRODUCT DESCRIPTION ........................................................................................................................ 6 2.2. TABLE OF CARRIER FREQUENCYS ....................................................................................................... 6 2.3. IEEE 802.11N MODULATION SCHEME .................................................................................................... 7 2.4. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................... 7 2.5. TEST METHODOLOGY ............................................................................................................................. 7 2.6. SPECIAL ACCESSORIES ......................................................................................................................... 7 2.7. EQUIPMENT MODIFICATIONS ................................................................................................................. 7 2.8. ANTENNA REQUIREMENT....................................................................................................................... 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................... 9 4. DESCRIPTION OF TEST MODES ................................................................................................................. 10 5. SYSTEM TEST CONFIGURATION ................................................................................................................ 11 5.1. CONFIGURATION OF EUT SYSTEM ...................................................................................................... 11 5.2. EQUIPMENT USED IN EUT SYSTEM ..................................................................................................... 11 5.3. SUMMARY OF TEST RESULTS .............................................................................................................. 11 6. TEST FACILITY .............................................................................................................................................. 12 7. OUTPUT POWER ........................................................................................................................................... 13 7.1. MEASUREMENT PROCEDURE ............................................................................................................. 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 13 7.3. LIMITS AND MEASUREMENT RESULT .................................................................................................. 14 8. 6 DB BANDWIDTH ......................................................................................................................................... 15 8.1. MEASUREMENT PROCEDURE ............................................................................................................. 15 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 15 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................... 16 9. CONDUCTED SPURIOUS EMISSION........................................................................................................... 22 9.1. MEASUREMENT PROCEDURE ............................................................................................................. 22 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................... 22 9.3. MEASUREMENT EQUIPMENT USEDJN ................................................................................................ 22 9.4. LIMITS AND MEASUREMENT RESULT .................................................................................................. 22 Report No.: AGC11477210601FE05 Page 4 of 73 10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY ........................................................ 35 10.1 MEASUREMENT PROCEDURE ............................................................................................................ 35 10.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 35 10.3 MEASUREMENT EQUIPMENT USED ................................................................................................... 35 10.4 LIMITS AND MEASUREMENT RESULT ................................................................................................. 35 11. RADIATED EMISSION ................................................................................................................................. 42 11.1. MEASUREMENT PROCEDURE............................…

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Report No.: AGC11477210601FE05 Page 52 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11b with data rate 1 2412MHZ Antenna Vertical PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 53 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11b with data rate 1 2462MHZ Antenna Horizontal PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 54 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11b with data rate 1 2462MHZ Antenna Vertical PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 55 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11g with data rate 6 2412MHZ Antenna Horizontal PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 56 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11g with data rate 6 2412MHZ Antenna Vertical PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 57 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11g with data rate 6 2462MHZ Antenna Horizontal PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 58 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11g with data rate 6 2462MHZ Antenna Vertical PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 59 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11n 20 with data rate 6.5 2412MHZ Antenna Horizontal PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 60 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11n 20 with data rate 6.5 2412MHZ Antenna Vertical PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 61 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11n 20 with data rate 6.5 2462MHZ Antenna Horizontal PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 62 of 73 EUT Smart visual ear-clean Rod Model Name E3 Temperature 25°C Relative Humidity 60% Pressure 960hPa Test Voltage Normal Voltage Test Mode 802.11n 20 with data rate 6.5 2462MHZ Antenna Vertical PK AV RESULT: PASS Report No.: AGC11477210601FE05 Page 63 of 73 13. FCC LINE CONDUCTED EMISSION TEST 13.1. LIMITS OF LINE CONDUCTED EMISSION TEST Frequency Maximum RF Line Voltage Q.P.( dBuV) Average( dBuV) 150kHz~500kHz 66-56 56-46 500kHz~5MHz 56 46 5MHz~30MHz 60 50 Note: 1. The lower limit shall apply at the transition frequency. 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz. 13.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST EUT & Support Units Report No.: AGC11477210601FE05 Page 64 of 73 13.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s manual. When the EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10 (see Test Facility for the dimensions of the ground plane used). When the EUT is a floor-standing equipment, it is placed on the ground plane which has a 3-12 mm non-conductive covering to insulate the EUT from the ground plane. 2. Support equipment, if needed, was placed as per ANSI C63.10. 3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10. 4. All support equipments received AC120V/60Hz power from a LISN, if any. 5. The EUT received DC 5V power from adapter which received AC120V/60Hz power from a LISN. 6. The test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver. 7. Analyzer / Receiver scanned from 150 kHz to 30MHz for emissions in each of the test modes. 8. During the above scans, the emissions were maximized by cable manipulation. 9. The test mode(s) were scanned during the preliminary test. Then, the EUT configuration and cable configuration of the above highest emission level were recorded for reference of final testing. 13.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. EUT and support equipment was set up on the test bench as per step 2 of the preliminary test. 2. A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest emissions. Emission frequency and amplitude were recorded into a computer in which correction factors were used to calculate the emission level and compare reading to the applicable limit. If EUT emission level was less –2dB to the A.V. limit in Peak mode, then the emission signal was re-checked using Q.P and Average detector. 3. The test data of the worst case condition(s) was reported on the Summary Data page. 13.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST N/A Note: The WIFI function cannot transmit when charging. Report No.: AGC11477210601FE05 Page 65 of 73 APPENDIX A: PHOTOGRAPHS OF TEST SETUP FCC RADIATED EMISSION TEST SETUP BELOW 1GHZ FCC RADIATED EMISSION TEST SETUP ABOVE 1GHZ Report No.: AGC1147721060…

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Test Setup Photos FCC RADIATED EMISSION TEST SETUP BELOW 1GHZ FCC RADIATED EMISSION TEST SETUP ABOVE 1GHZ CONDUCTED TEST SETUP