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SLFEF-B210GOutdoor Bluetooth Speakers

Shenzhen Wanfengda Electronics Co., Ltd.
Outdoor Bluetooth Speakers - FCC ID SLFEF-B210G - Shenzhen Wanfengda Electronics Co., Ltd.
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Application Details

Equipment Class
DSS - Part 15 Spread Spectrum Transmitter
Date of Grant
May 02, 2021
Application Purpose
Original Equipment
Date of Application
May 02, 2021
Equipment Note
Outdoor Bluetooth Speakers
Frequency Range
2402.00000000 - 2480.00000000
Company
Shenzhen Wanfengda Electronics Co., Ltd.
Country
China

Documents & Files

Select a file to view

Users Manual

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Cover Letter(s)

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External Photos

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ID Label/Location Info

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Internal Photos

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RF Exposure Info

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Test Report

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Test Setup Photos

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

[email protected] [email protected] ④ ⑥ ⑤ ② ③ ① ⑨ Main Speaker Secondary Speaker LED LED 1 Disconnect/Restore Bluetooth Pohopa speakers have one year warranty, for tech support and customer services, or any questions in the use, please don't hesitate to contact us with your Amazon order number via our customer support email address below, we will response within 12 hours. this button for volume decrease, press and hold for previous track selection. Press this button for volume increase, press and hold for next track selection. Press 2 Power ON/OFF Press Once to turn ON, Press and Hold to turn OFF 3 Volume Decrease/ Previous Track 4 Volume Increase/ Next Track 5 LED Light Switch 7 Micro USB Slot 8 AUX Input 9 LED Indicator LED Boot and connect LED lights About distance Parameter Music selection and volume adjustment ⑧ Main speaker and Secondary speaker r econnecting Best stereo sound effect EF-B210G(STEREO PAIRING) 1st 2nd 1st, Turn on both Main and Secondary speakers, they will be entering pairing status, you will hear voice "Power on" - "Searching" - "Pairing connecting"You will seethe LED indicator on Main speaker blinks in Blue, on Secondary speaker stays in Green, which means they are alreay paired. 2nd, When Main and Secondary speakers are paired, turn on the Bluetooth function on your Bluetooth device and search for EF-B210G(STEREO PAIRING). When found, select and pair. After hearing the voice "Bluetooth connected", music is ready to play from both speakers. 1. To prevent battery life decrease, please disconnect power cord to speakers when fully charged, do not leave speakers plugged in all day long. Also, remember to turn off speakers when not in use. 2. The speaker EF-B210G(STEREO PAIRING) will be saved into the previous Bluetooth device it paired with for instant music playback. If you want the speaker connected to other Bluetooth devices, you will need to disconnect or choose "Forget This Device" from that previous device first. 3. When connecting, be close to the Main speaker for faster connection. At this time you can test how far your Bluetooth devices can be from the speaker(Main). 4. If there is sound cutting out/breaking out or Bluetooth connection malfunction. Or the speaker auto powers off, please recharge the speakers, then restart them, they will work perfectly again. 5. The Main speaker and Secondary speaker are attached to each other when paired. You can gain control the power off, LED lights on/off for both speakers just through one speaker. This feature also makes it that during the process of music playing, if one speaker is powered off, the other one will shut down too, even if it still has power left. This doesn't mean the speaker can't hold a charge or the battery damaged. We recommend charging both speakers when your speakers have low battery. speakers and let them auto pair first, then connect EF-B210G(STEREO PAIRING) to your Bluetooth device. Kind reminder for your Pohopa EF-B210G(STEREO PAIRING) speakers IMPORTANT! ! ! INDOOR/OUTDOOR BLUETOOTH SPEAKERS QUICK QUIDE What's in the box model name: EF-B210G (also functioned as Play/Pause when the speaker is turned on) Just keep the distance between the Main speaker and Secondary speaker within 20ft; and the distance between speakers and listeners within 33ft. It is best to form an equilateral triangle between the three. Best solution to enjoy stereo sound effect: < < 20ft 33ft + Bluetooth Distance(distance between Main speaker and Bluetooth device): 33ft(max) Pairing Distance(distance between Main speaker and Secondary speaker): 66ft(max) If there is sound cutting out/breaking out due to the distance, please turn off both speakers and then turn on them again. Reminder: Please note that outdoor use distance may be shortened due to signal interference, which is normal. For LED lights, we currently have two versions. White lights only Labeled as For White lights, the LED lights function can be easily accessed by pressing the LED light control button to control it ON/OFF. For White&Colored lights, press the LED lights control buttom to switch the color. The colored lights feature can only be activited when the speakers are playing music plus the volume of the music resource has to be up to 30% at least. The stronger the beat of the music, the better the effect of the sound responsive colored lights. Labeled as White&Colored lights ≤33ft ≤66ft -------------------- -------------------------------------------- 54 QUICK QUIDE -+ + LED Secondary Speaker Secondary Speaker Secondary Speaker LED LED LED Micro USB Charging Cable AUX Cable Quick Quide LED Pair - + Main Speaker Main Speaker Main Speaker Main Speaker LED Pair - + LED Pair - + LED Pair - + LED Pair - + - - + WHITE LIGHTS √ COLORED LIGHTS √ → → → → → → ⑦ In any state, including the shutdown, you only need to use the micro usb charging cable to connect the speakers and your phone charger. The speaker is charging with the red light on, fully charged with red light off. If you turn on one speaker only(the Secondary speaker) and get it connected with your device, then you turn on the Main speaker. This way you will see two Bluetooth names: EF-B210G(STEREO PAIRING) and EF-B210G(SECONDARY SPEAKER), you will find two speakers won't be able to auto pair. This can be fixed when you restart both speakers, they will auto pair with each other again within 5 seconds with flashing blue light on main speaker, solid green light on secondary speaker and sync up. Usually you will not see "EF-B210G(SECONDARY SPEAKER)" because it was hidden as long as you don't turn on the Secondary speaker first and get it connected with Bluetooth To aviod Bluetooth confusion, we recommend ignoring "EF-B210G(SECONDARY SPEAKER)" after two speaker are reconnected by selecting "Forget This Device" — EF-B210G (STEREO PAIRING) from the Bluetooth list of your device. To prevent battery damage, please do not leave the speakers plugged in all day long, or the battery will get damaged gradually, this is …

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Cover Letter(s)

4/23/2021 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: SLFEF-B210G Product Name: Outdoor Bluetooth Speakers Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics Long-term confidential  Block diagram Long-term confidential  Operation description Long-term confidential These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Signature: Name huafeng Huang Position Engineer Company Name Shenzhen Wanfengda Electronics Co., Ltd Address 2F, Building 1, Hezhou Yuye Industrial Zone, Xixiang, Bao’an, Shenzhen, Guangdong, China, 518128. Tel +86-755-29617689 Fax / Email [email protected]

External Photos

Photos Of EUT

ID Label/Location Info

4.5cm 2.5cm 4.5cm Label Location FCC ID: SLFEF-B210G Shenzhen Wanfengda Electronics Co., Ltd Product name: Outdoor Bluetooth Speakers Model No.: EF-B210G 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.

RF Exposure Info

FCC ID: SLFEF-B210G RF Exposure evaluation 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 The result is rounded to one decimal place for comparison Worse case is as below: [2402MHz: -3.926dBm(0.41 mW) output power] (0.41 mW /5mm) ·[√2.402 (GHz)]= 0.13 <3.0 for 1-g SAR Then SAR evaluation is not required

Test Report

FCC TEST REPORT FCC ID: SLFEF-B210G On Behalf of Shenzhen Wanfengda Electronics Co., Ltd Outdoor Bluetooth Speakers Model No.: EF-B210G, EF-B210G(COLOUR) Prepared for : Shenzhen Wanfengda Electronics Co., Ltd Address : 2F, Building 1, Hezhou Yuye Industrial Zone, Xixiang, Bao’an, Shenzhen, Guangdong, China, 518128. Prepared By : Shenzhen Alpha Product Testing Co., Ltd. Address : Building i, No.2, Lixin Road, Fuyong Street, Bao’an District, 518103, Shenzhen, Guangdong, China Report Number : A2103115-C01-R01 Date of Receipt : March 17, 2021 Date of Test : March 17, 2021-April 21, 2021 Date of Report : April 21, 2021 Version Number : V0 Page 2 of 71 Report No.: A2103115-C01-R01 TABLE OF CONTENTS Description Page 1. Summary Of Standards And Results ................................................................................................... 6 1.1. Description of Standards and Results .......................................................................... 6 2. General Information .............................................................................................................................. 7 2.1. Description of Device (EUT) ....................................................................................... 7 2.2. Accessories of Device (EUT) ...................................................................................... 8 2.3. Tested Supporting System Details ............................................................................... 8 2.4. Block Diagram of connection between EUT and simulators ...................................... 8 2.5. Test Mode Description ................................................................................................. 8 2.6. Test Conditions ............................................................................................................ 8 2.7. Test Facility ................................................................................................................. 9 2.8. Measurement Uncertainty ............................................................................................ 9 2.9. Test Equipment List ................................................................................................... 10 3. Maximum Peak Output Power ........................................................................................................... 11 3.1. Limit .......................................................................................................................... 11 3.2. Test Procedure ........................................................................................................... 11 3.3. Test Setup ................................................................................................................... 11 3.4. Test Result ................................................................................................................. 11 4. Bandwidth ............................................................................................................................................. 12 4.1. Limit .......................................................................................................................... 12 4.2. Test Procedure ........................................................................................................... 12 4.3. Test Result ................................................................................................................. 12 5. Carrier Frequency Separation ............................................................................................................ 22 5.1. Limit .......................................................................................................................... 22 5.2. Test Procedure ........................................................................................................... 22 5.3. Test Result ................................................................................................................. 22 6. Number Of Hopping Channel ............................................................................................................. 24 6.1. Limit .......................................................................................................................... 24 6.2. Test Procedure ........................................................................................................... 24 6.3. Test Result ................................................................................................................. 24 7. Dwell Time ............................................................................................................................................ 26 7.1. Test limit .................................................................................................................... 26 7.2. Test Procedure ........................................................................................................... 26 7.3. Test Result ................................................................................................................. 26 8. Radiated Emissions .............................................................................................................................. 32 8.1. Limit .......................................................................................................................... 32 8.2. Block Diagram of Test setup ..................................................................................... 33 8.3. Test Procedure ........................................................................................................... 34 8.4. Test Result ................................................................................................................. 34 9. Band Edge Compliance ....................................................................................................................... 40 Page 3 of 71 Report No.: A2103115-C01-R01 9.1. Bloc…

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Test Report

Page 40 of 71 Report No.: A2103115-C01-R01 9. Band Edge Compliance 9.1. Block Diagram of Test Setup 9.2. Limit All the lower and upper band-edges emissions appearing within restricted frequency bands shall not exceed the limits shown in 15.209, all the other emissions outside operation shall be at least 20dB below the fundamental emissions, or comply with 15.209 limits. 9.3. Test Procedure All restriction band and non- restriction band have been tested, only worse case is reported. 9.4. Test Result PASS. (See below detailed test data) Page 41 of 71 Report No.: A2103115-C01-R01 Radiated Method: Hopping-off Test Mode: GFSK-Low 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 10 0 2380 2390 2400 2410 2420 2430 2440 2450 Level in dB 礦 /m FCC P A RT 15 2G Hz _P K FCC P A RT 15 2G Hz _A VG 2.389961000 GHz 40.527 d B礦/m 2.3899470 00 G Hz 30.405 d B礦/m Test Mode: GFSK-High 20 30 40 50 60 70 80 90 10 0 110 2450 2460 2470 2480 2490 2500 Level in dB 礦 /m FCC P ar t 15 2G Hz_P K FCC P ar t 15 2G Hz_A VG 2.4835050 00 G Hz 45.986 d B礦/m 2.483515000 GHz 35.724 d B礦/m Page 42 of 71 Report No.: A2103115-C01-R01 Hopping-on Test Mode: GFSK-Low 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 10 0 2380 2390 2400 2410 2420 2430 2440 2450 Level in dB 礦 /m FCC P A RT 15 2G Hz _P K FCC P A RT 15 2G Hz _A VG 2.3899260 00 G Hz 40.055 d B礦/m 2.3899470 00 G Hz 29.963 d B礦/m Test Mode: GFSK-High 20 30 40 50 60 70 80 90 10 0 110 2450 2460 2470 2480 2490 2500 Level in dB 礦 /m FCC P ar t 15 2G Hz_P K FCC P ar t 15 2G Hz_A VG 2.483515000 GHz 40.247 d B礦/m 2.4835250 00 G Hz 31.135 d B礦/m Page 43 of 71 Report No.: A2103115-C01-R01 Hopping-off Test Mode: π/4-DQPSK-Low 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 10 0 2380 2390 2400 2410 2420 2430 2440 2450 Level in dB 礦 /m FCC P A RT 15 2G Hz _P K FCC P A RT 15 2G Hz _A VG 2.3898700 00 G Hz 40.554 d B礦/m 2.389919000 GHz 30.234 d B礦/m Test Mode: π/4-DQPSK-High 20 30 40 50 60 70 80 90 10 0 110 2450 2460 2470 2480 2490 2500 Level in dB 礦 /m FCC P ar t 15 2G Hz_P K FCC P ar t 15 2G Hz_A VG 2.483615000 GHz 45.324 d B礦/m 2.4835500 00 G Hz 35.622 d B礦/m Page 44 of 71 Report No.: A2103115-C01-R01 Hopping-on Test Mode: π/4-DQPSK-Low 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 10 0 2380 2390 2400 2410 2420 2430 2440 2450 Level in dB 礦 /m FCC P A RT 15 2G Hz _P K FCC P A RT 15 2G Hz _A VG 2.3899680 00 G Hz 40.364 d B礦/m 2.3899400 00 G Hz 30.122 d B礦/m Test Mode: π/4-DQPSK-High 20 30 40 50 60 70 80 90 10 0 110 2450 2460 2470 2480 2490 2500 Level in dB 礦 /m FCC P ar t 15 2G Hz_P K FCC P ar t 15 2G Hz_A VG 2.4835300 00 G Hz 41.021 d B礦/m 2.4835950 00 G Hz 30.953 d B礦/m Page 45 of 71 Report No.: A2103115-C01-R01 Hopping-off Test Mode: 8-DPSK-Low 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 10 0 2380 2390 2400 2410 2420 2430 2440 2450 Level in dB 礦 /m FCC P A RT 15 2G Hz _P K FCC P A RT 15 2G Hz _A VG 2.389919000 GHz 40.386 d B礦/m 2.3899820 00 G Hz 30.114 d B礦/m Test Mode: 8-DPSK-High 20 30 40 50 60 70 80 90 10 0 110 2450 2460 2470 2480 2490 2500 Level in dB 礦 /m FCC P ar t 15 2G Hz_P K FCC P ar t 15 2G Hz_A VG 2.4835450 00 G Hz 44.803 d B礦/m 2.4835400 00 G Hz 35.841 d B礦/m Page 46 of 71 Report No.: A2103115-C01-R01 Hopping-on Test Mode: 8-DPSK -Low 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 10 0 2380 2390 2400 2410 2420 2430 2440 2450 Level in dB 礦 /m FCC P A RT 15 2G Hz _P K FCC P A RT 15 2G Hz _A VG 2.3897790 00 G Hz 41.088 d B礦/m 2.389891000 GHz 29.805 d B礦/m Test Mode: 8-DPSK –High 20 30 40 50 60 70 80 90 10 0 110 2450 2460 2470 2480 2490 2500 Level in dB 礦 /m FCC P ar t 15 2G Hz_P K FCC P ar t 15 2G Hz_A VG 2.4835200 00 G Hz 43.474 d B礦/m 2.4835200 00 G Hz 33.118 d B礦/m Page 47 of 71 Report No.: A2103115-C01-R01 Conducted Method Band Edge NVNT 1-DH1 2402MHz Ant1 Hopping Emission Band Edge NVNT 1-DH1 2402MHz Ant1 No-Hopping Emission Page 48 of 71 Report No.: A2103115-C01-R01 Band Edge NVNT 1-DH1 2480MHz Ant1 Hopping Emission Band Edge NVNT 1-DH1 2480MHz Ant1 No-Hopping Emission Page 49 of 71 Report No.: A2103115-C01-R01 Band Edge NVNT 2-DH1 2402MHz Ant1 Hopping Emission Band Edge NVNT 2-DH1 2402MHz Ant1 No-Hopping Emission Page 50 of 71 Report No.: A2103115-C01-R01 Band Edge NVNT 2-DH1 2480MHz Ant1 Hopping Emission Band Edge NVNT 2-DH1 2480MHz Ant1 No-Hopping Emission Page 51 of 71 Report No.: A2103115-C01-R01 Band Edge NVNT 3-DH1 2402MHz Ant1 Hopping Emission Band Edge NVNT 3-DH1 2402MHz Ant1 No-Hopping Emission Page 52 of 71 Report No.: A2103115-C01-R01 Band Edge NVNT 3-DH1 2480MHz Ant1 Hopping Emission Band Edge NVNT 3-DH1 2480MHz Ant1 No-Hopping Emission Page 53 of 71 Report No.: A2103115-C01-R01 10. Power Line Conducted Emissions 10.1.Block Diagram of Test Setup 10.2.Limit Frequency Maximum RF Line Voltage Quasi-Peak Level dB(V) Average Level dB(V) 150kHz ~ 500kHz 66 ~ 56* 56 ~ 46* 500kHz ~ 5MHz 56 46 5MHz ~ 30MHz 60 50 Notes: 1. * Decreasing linearly with logarithm of frequency. 2. The lower limit shall apply at the transition frequencies. 10.3.Test Procedure (1) The EUT was placed on a non-metallic table, 80cm above the ground plane. (2) Setup the EUT and simulator as shown in 10.1 (3) The EUT Power connected to the power mains through a power adapter and a line impedance stabilization network (L.I.S.N1). The other peripheral devices power cord connected to the power mains through a line impedance stabilization network (L.I.S.N2), this provided a 50-ohm coupling impedance for the EUT (Please refer to the block diagram of the test setup and photographs). Both sides of power line were checked for maximum conducted interference. In order to find the maximum emission, the relative positions of equipments and all of the interface cables were changed according to ANSI C63.10 :2013on conducted Emission test. (4) The bandwidth of test receiver is set at 10KHz. (5) The frequency range from 150 KHz to 30MHz is checked. 10.4.Test Result PASS. (See below detailed test data) Note: If peak Result comply with AV limit, QP and AV Result is deemed to comply with AV limit EUT LIS…

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Test Setup Photos

Page 56 of 71 Report No.: A2103115-C01-R01 12. Test Setup Photo 12.1.Photos of Radiated emission Page 57 of 71 Report No.: A2103115-C01-R01 12.2.Photos of Conducted Emission test Page 58 of 71 Report No.: A2103115-C01-R01 13. Photos Of EUT Page 59 of 71 Report No.: A2103115-C01-R01 Page 60 of 71 Report No.: A2103115-C01-R01 Page 61 of 71 Report No.: A2103115-C01-R01 Page 62 of 71 Report No.: A2103115-C01-R01 Page 63 of 71 Report No.: A2103115-C01-R01 Page 64 of 71 Report No.: A2103115-C01-R01 Page 65 of 71 Report No.: A2103115-C01-R01 Page 66 of 71 Report No.: A2103115-C01-R01 Page 67 of 71 Report No.: A2103115-C01-R01 Page 68 of 71 Report No.: A2103115-C01-R01 Page 69 of 71 Report No.: A2103115-C01-R01 Page 70 of 71 Report No.: A2103115-C01-R01 Page 71 of 71 Report No.: A2103115-C01-R01 ---------THE END OF REPORT-------

Contact Information

Applicant

huafeng Huang(Engineer)
[email protected]+86-755-29617989Fax: +86-755-29617689

Test Firm

Shenzhen Alpha Product Testing Co., LTD.Simple Guan
[email protected]+86 755 29766001-810

Technical Specifications

#Rule PartsFrequency RangePower Output
115C2.40 GHz - 2.48 GHz400.00 µW
Confidentiality
Long Term
Grant Notes
Output power listed is conducted.

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