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FCC ID 2AC7Z-ESPWROOM02

Espressif ESPWROOM02 module FCC filing (2AC7Z-ESPWROOM02)

Public FCC record for Espressif ESPWROOM02 (2AC7Z-ESPWROOM02), a digital transmission system device filed by Espressif Systems (Shanghai) Co., Ltd. Public exhibits include external photos, internal photos, a user manual, and RF exposure information. Radio evidence covers 2.4 GHz Wi-Fi / Bluetooth.

Espressif Systems (Shanghai) Co., Ltd.
2AC7Z-ESPWROOM02
Networking
Jul 31, 2020
Plain-English filing summary

What this FCC record tells you

ESPWROOM02 is the device filed under FCC ID 2AC7Z-ESPWROOM02 by Espressif Systems (Shanghai) Co., Ltd.

Public exhibits include internal and external photos, a user manual, RF exposure information, and wireless test reports.

The strongest extracted details are internal and external photos, wireless test measurements, and manual setup and troubleshooting notes.

Those exhibits help verify what the device looks like, how its radios were tested, and setup or use details from the manual.

The listed radio coverage includes 2.4 GHz Wi-Fi / Bluetooth.

Terms in this filing

FCC ID
A public identifier assigned to a wireless device authorization.
Grantee Code
The manufacturer/applicant portion of an FCC ID.
DTS
FCC equipment class for digital transmission systems.
Part 15C
FCC rules for many unlicensed intentional radiators.
Official FCC facts

FCC filing details

Raw application fields from the FCC record, shown separately from the plain-English summary.

Grantee code2AC7ZThe FCC-assigned applicant code at the start of the FCC ID.
Product code-ESPWROOM02The filing-specific product code. It is not always the retail product name.
Application purposeClass II Permissive ChangeShows whether the FCC action was an original authorization, change, or related filing update.
FCC equipment classDTS - digital wireless transmitterIn plain English, this covers wireless data transmitters such as Wi-Fi or Bluetooth-style radios.
FCC rule partsPart 15C - low-power wireless rulesPart 15C is the FCC rule bucket used for many low-power Wi-Fi, Bluetooth, and similar transmitters.
Application IDcRCfxPQRuruxbKJ5Gmdlmw==The FCC tracking ID for this application batch.
Filing timeline

What changed in this filing

A quick read on what each public FCC application changed or confirmed, with source links attached.

Jul 31, 2020

Class II Permissive Change

FCC application

This FCC application appears to be a permitted change to an already-authorized device, with the matching grant and public exhibits grouped together.

  • Application ID: cRCfxPQRuruxbKJ5Gmdlmw==
  • Equipment class: DTS - digital wireless transmitter
  • FCC rules: Part 15C - low-power wireless rules
  • Bands: 2.4 GHz Wi-Fi / Bluetooth: 1 range
  • Public exhibits: user manual, external photos, internal photos, RF exposure, RF test report
Dec 22, 2016

Class II Permissive Change

FCC application

This FCC application appears to be a permitted change to an already-authorized device, with the matching grant and public exhibits grouped together.

  • Application ID: 5a+kZhdXMwgnl8lOwcE2qg==
  • Equipment class: DTS - digital wireless transmitter
  • FCC rules: Part 15C - low-power wireless rules
  • Bands: 2.4 GHz Wi-Fi / Bluetooth: 1 range
  • Public exhibits: RF test report
Apr 17, 2015

Original Equipment

FCC application

This FCC application appears to be the original authorization package for the device, with the matching grant and public exhibits grouped together.

  • Application ID: WHM89XSw2YbUGnUKGMUqJA==
  • Equipment class: DTS - digital wireless transmitter
  • FCC rules: Part 15C - low-power wireless rules
  • Bands: 2.4 GHz Wi-Fi / Bluetooth: 1 range
  • Public exhibits: user manual, external photos, internal photos, RF test report
Wireless test details

Wireless details from FCC tests

This section summarizes what the FCC test documents say about the device's wireless connections and tested frequency ranges. RF exposure or SAR rows are compliance/safety context, not a speed or range claim.

This filing covers Wi-Fi-style wireless operation, including the shared frequency ranges shown below.

FCC equipment classDTS - digital wireless transmitterThe FCC shorthand for the radio behavior reviewed in this filing.
FCC rule partsPart 15C - low-power wireless rulesThe rule sections cited by the grant or test documents.
Frequency bands2.4 GHz Wi-Fi / Bluetooth: 1 rangeThe radio ranges the FCC filing lists for the device.Source: FCC grant; 1 range grouped below
Frequency range2412 - 2462 MHz | 2400 - 2483.5 MHzSource: Test Report p. 6
Maximum conducted output power22.23 dBm | 1 WTransmit-power values come from lab testing and should not be read as a promised wireless range.Source: Test Report p. 6; Test Report p. 9
Public photo exhibits

Public FCC photos

Product photos from public FCC exhibits, formatted for easier browsing. External photos show the enclosure and labels; internal photos show boards, antennas, and other compliance-relevant hardware.

Espressif ESPWROOM02 external FCC photo from External Photos p. 1
External viewEspressif ESPWROOM02 external FCC photo from External Photos p. 1Source: External Photos p. 1
Espressif ESPWROOM02 external FCC photo from External Photos p. 2
External viewEspressif ESPWROOM02 external FCC photo from External Photos p. 2Source: External Photos p. 2
Espressif ESPWROOM02 external FCC photo from External Photos p. 3
External viewEspressif ESPWROOM02 external FCC photo from External Photos p. 3Source: External Photos p. 3
Espressif ESPWROOM02 external FCC photo from External Photos p. 4
External viewEspressif ESPWROOM02 external FCC photo from External Photos p. 4Source: External Photos p. 4
Espressif ESPWROOM02 internal FCC photo from Internal Photos p. 1
Internal viewEspressif ESPWROOM02 internal FCC photo from Internal Photos p. 1Source: Internal Photos p. 1
Espressif ESPWROOM02 internal FCC photo from Internal Photos p. 2
Internal viewEspressif ESPWROOM02 internal FCC photo from Internal Photos p. 2Source: Internal Photos p. 2
Espressif ESPWROOM02 internal FCC photo from Internal Photos p. 3
Internal viewEspressif ESPWROOM02 internal FCC photo from Internal Photos p. 3Source: Internal Photos p. 3
Espressif ESPWROOM02 internal FCC photo from Internal Photos p. 4
Internal viewEspressif ESPWROOM02 internal FCC photo from Internal Photos p. 4Source: Internal Photos p. 4
Manual shortcuts

Quick troubleshooting

Setup, reset, and status notes from the public manual. Use the official source document for full instructions and safety context.

Public manual

LED and status lights

  • The LED on the wearable device will begin flashing red. (Figure 8) Figure 8
Manual page 6
"The LED on the wearable device will begin flashing red. (Figure 8) Figure 8"
Users Manual

Batch-approved public quick troubleshooting on 2026-05-02 after stricter OCR/source-evidence gate; only high-confidence passed rows with source-backed useful instructions were approved.

Manual notes

Manual notes

Useful setup, control, or operating details from the public FCC manual exhibit.

Official FCC source: Users Manual10 pages1.3 MB public file
  • Checking out a Wearable Device from the Base Station

    Verify the base station's display shows the “Please Enter Your ID Below” message. If it is not illuminated, then press a button on the keypad. Enter your ID and press the “ENTER” button. (Figure 6)

    Source: Users Manual, page 5
  • MākuSafe Wearable Device User Manual

    Insert the wearable device into the holster by sliding it downward into the holster. When inserted properly, it will click into place. (Figure 7)

    Source: Users Manual, page 6
  • MākuSafe Wearable Device User Manual

    Push and hold the center button on the wearable device for 2 seconds. (Figure 8)

    Source: Users Manual, page 6
  • MākuSafe Wearable Device User Manual

    The LED on the wearable device will begin flashing red. (Figure 8)

    Source: Users Manual, page 6
  • MākuSafe Wearable Device User Manual

    Continue to hold down the button and speak towards the wearable device to record up to a 15 second voice memo.

    Source: Users Manual, page 7
  • MākuSafe Wearable Device User Manual

    After completing a voice memo, release the button.

    Source: Users Manual, page 7
Open FCC filing source

Official FCC documents

Open the original FCC files used to check the details shown here. Badges separate whether a file is public from whether details from that file appear on this page.

FCC grant

Official FCC grant or authorization record.

Public FCC fileUsed on this page
Source

Users Manual (4835594)

Public user manual or setup guide from the FCC filing.

Public FCC fileUsed on this page
FCC type: Users ManualApplication ID: cRCfxPQRuruxbKJ5Gmdlmw==
Source

Internal Photos (4835593)

Internal product photo exhibit from the FCC filing.

Public FCC fileUsed on this page
FCC type: Internal PhotosApplication ID: cRCfxPQRuruxbKJ5Gmdlmw==
Source

External Photos (4835592)

External product photo exhibit from the FCC filing.

Public FCC fileUsed on this page
FCC type: External PhotosApplication ID: cRCfxPQRuruxbKJ5Gmdlmw==
Source

RF Exposure Info

RF exposure exhibit from the FCC filing.

Public FCC fileOriginal FCC file
FCC type: RF Exposure InfoApplication ID: cRCfxPQRuruxbKJ5Gmdlmw==
Source

23 additional official FCC documents

Additional FCC exhibits are grouped here by source type instead of repeated as individual rows.

Source index
1 grant record2 manuals or setup guides2 internal photo exhibits1 external photo exhibit3 RF report exhibits14 test report exhibits