Espressif Systems ESP32-S2-WROOM User Manual page 25

1. Applicable FCC rules
This module is granted by Single Modular Approval. It complies to the
requirements of FCC part 15C, section 15.247 rules.
2. The specific operational use conditions
This module can be used in IoT devices. The input voltage to the module is nominally
3.3V-3.6 V DC. The operational ambient temperature of the module is -30 to
85 degree C. Only the embedded PCB antenna is allowed. Any other external
antenna is prohibited.
3. Limited module procedures
N/A
4. Trace antenna design
N/A
5. RF exposure considerations
The 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. If the equipment
OEM Guidance