FCC ID 2ABZ2-E509A
2ABZ2E509A, 2ABZ2 E509A, 2ABZ2-E509A, 2ABZ2-E5O9A
OnePlus Technology (Shenzhen) Co., Ltd. Wireless Earbuds with Bluetooth
An FCC ID is the product ID assigned by the FCC to identify wireless products in the market. The FCC chooses 3 or 5 character "Grantee" codes to identify the business that created the product.
For example, the grantee code for FCC ID: 2ABZ2-E509A is . The remaining characters of the FCC ID, -E509A, are often associated with the product model, but they can be random. These letters are chosen by the applicant.
In addition to the application, the FCC also publishes internal images, external images, user manuals, and test results for wireless devices. They can be under the "exhibits" tab below.
- Application: Wireless Earbuds with Bluetooth
- Equipment Class: DSS - Part 15 Spread Spectrum Transmitter
OnePlus Technology (Shenzhen) Co., Ltd.
Full Company Details: OnePlus Technology (Shenzhen) Co., Ltd. - 2ABZ2
Company Code: 2ABZ2
Address:
OnePlus Technology (Shenzhen) Co., Ltd.
18C02, 18C03, 18C04 and 18C05, Shum Yip Terra Building, Binhe Avenue North, Futian District,
Shenzhen, N/A N/A
China
Company Code: 2ABZ2
Address:
OnePlus Technology (Shenzhen) Co., Ltd.
18C02, 18C03, 18C04 and 18C05, Shum Yip Terra Building, Binhe Avenue North, Futian District,
Shenzhen, N/A N/A
China
App # | Purpose | Date | Unique ID |
---|---|---|---|
1 | Original Equipment | 2023-11-20 | 0qZlOGBM0qypE8I+CSD13Q== |
2 | Original Equipment | 2023-11-20 | uUDn/PIu5rmUSfnpG55f0Q== |
Approved Operating Frequencies
App # | Frequency Range | Power Output | Rule Parts | Grant Notes |
---|---|---|---|---|
1.1 | 2402.00000000-2480.00000000 | 0.0110000 | 15C | CC |
2.1 | 2402.00000000-2480.00000000 | 0.0110000 | 15C | CC |
Exhibits
All Available Documents
App # | Document | Type | Submitted / Available |
---|---|---|---|
1 | FCC_AttestationLetter_COVERED_EQUIPMENT | Attestation Statements / Adobe Acrobat PDF (170 kB) | 2023-11-20 / 2023-11-20 |
1 | AntennaPart_Specification-L | Test Report / Adobe Acrobat PDF (2132 kB) | 2023-11-20 / 2023-11-20 |
1 | FCC_Attestation_Letter_US_AGENT | Attestation Statements / Adobe Acrobat PDF (176 kB) | 2023-11-20 / 2023-11-20 |
1 | AntennaPart_Specification-R | Test Report / Adobe Acrobat PDF (2052 kB) | 2023-11-20 / 2023-11-20 |
1 | Confidentiality_Request | Cover Letter(s) / Adobe Acrobat PDF (260 kB) | 2023-11-20 / 2023-11-20 |
1 | Label_LabelLocation | ID Label/Location Info / Adobe Acrobat PDF (178 kB) | 2023-11-20 / 2023-11-20 |
1 | AuthorizationLetter | Cover Letter(s) / Adobe Acrobat PDF (226 kB) | 2023-11-20 / 2023-11-20 |
1 | WT238001737_BT | Test Report / Adobe Acrobat PDF (4839 kB) | 2023-11-20 / 2023-11-20 |
1 | 238001738_SAR | RF Exposure Info / Adobe Acrobat PDF (5217 kB) | 2023-11-20 / 2023-11-20 |
2 | 238001738_SAR | RF Exposure Info / Adobe Acrobat PDF (5217 kB) | 2023-11-20 / 2023-11-20 |
2 | FCC_AttestationLetter_COVERED_EQUIPMENT | Attestation Statements / Adobe Acrobat PDF (170 kB) | 2023-11-20 / 2023-11-20 |
2 | AntennaPart_Specification-L | Test Report / Adobe Acrobat PDF (2132 kB) | 2023-11-20 / 2023-11-20 |
2 | FCC_Attestation_Letter_US_AGENT | Attestation Statements / Adobe Acrobat PDF (176 kB) | 2023-11-20 / 2023-11-20 |
2 | AntennaPart_Specification-R | Test Report / Adobe Acrobat PDF (2052 kB) | 2023-11-20 / 2023-11-20 |
2 | Confidentiality_Request | Cover Letter(s) / Adobe Acrobat PDF (260 kB) | 2023-11-20 / 2023-11-20 |
2 | Label_LabelLocation | ID Label/Location Info / Adobe Acrobat PDF (178 kB) | 2023-11-20 / 2023-11-20 |
2 | AuthorizationLetter | Cover Letter(s) / Adobe Acrobat PDF (226 kB) | 2023-11-20 / 2023-11-20 |
2 | WT238001740_BLE | Test Report / Adobe Acrobat PDF (4145 kB) | 2023-11-20 / 2023-11-20 |
APP # 1 (2023-11-20) Documents
AntennaPart_Specification-L | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2132 kB) | |
Operational_Description | |
2023-11-20 / N/A Operational Description / Adobe Acrobat PDF (236 kB) | |
FCC_AttestationLetter_COVERED_EQUIPMENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (170 kB) | |
WirelessEarBuds_BOM_Sliding_flexible_plate-R | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (63 kB) | |
ExternalPhotos | |
2023-11-20 / 2024-05-18 External Photos / Adobe Acrobat PDF (3156 kB) | |
ChargingCase_BOM | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (57 kB) | |
WirelessEarBuds_BOM_Front_cavity_soft_plate-L | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (73 kB) | |
AntennaPart_Specification-L | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2132 kB) | |
AntennaPart_Specification-R | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2052 kB) | |
Test_Setup_Photos | |
2023-11-20 / 2024-05-18 Test Setup Photos / Adobe Acrobat PDF (431 kB) | |
FCC_Attestation_Letter_US_AGENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (176 kB) | |
WirelessEarBuds_Schematics-2 | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (472 kB) | |
FCC_AttestationLetter_COVERED_EQUIPMENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (170 kB) | |
ChargingCase_Schematics_Hall_Board | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (408 kB) | |
WirelessEarBuds_BOM_Front_cavity_soft_plate-R | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (73 kB) | |
AntennaPart_Specification-R | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2052 kB) | |
AntennaPart_Specification_L | |
2023-11-20 / N/A Operational Description / Adobe Acrobat PDF (619 kB) | |
Test_Setup_Photos_AppendixE | |
2023-11-20 / 2024-05-18 Test Setup Photos / Adobe Acrobat PDF (5057 kB) | |
Confidentiality_Request | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (260 kB) | |
FCC_Attestation_Letter_US_AGENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (176 kB) | |
WirelessEarBuds_Schematics-3 | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (461 kB) | |
Label_LabelLocation | |
2023-11-20 / 2023-11-20 ID Label/Location Info / Adobe Acrobat PDF (178 kB) | |
ChargingCase_Schematics_main_board | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (412 kB) | |
WirelessEarBuds_BOM_Main_board-L | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (84 kB) | |
AntennaPart_Specification_R | |
2023-11-20 / N/A Operational Description / Adobe Acrobat PDF (623 kB) | |
TUNE_UP | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (73 kB) | |
AuthorizationLetter | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (226 kB) | |
InternalPhotos | |
2023-11-20 / 2024-05-18 Internal Photos / Adobe Acrobat PDF (5002 kB) | |
WirelessEarBuds_Schematics_main_board-1 | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (1223 kB) | |
ChargingCase_Schematics_USB | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (307 kB) | |
WirelessEarBuds_BOM_Main_board-R | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (84 kB) | |
AuthorizationLetter | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (226 kB) | |
UserManual | |
2023-11-20 / 2024-05-18 Users Manual / Adobe Acrobat PDF (3955 kB) | |
WT238001737_BT | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (4839 kB) | |
Label_LabelLocation | |
2023-11-20 / 2023-11-20 ID Label/Location Info / Adobe Acrobat PDF (178 kB) | |
WT238001737_BT | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (4839 kB) | |
238001738_SAR | |
2023-11-20 / 2023-11-20 RF Exposure Info / Adobe Acrobat PDF (5217 kB) | |
WirelessEarBuds_BOM_Sliding_flexible_plate-L | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (63 kB) | |
Confidentiality_Request | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (260 kB) | |
ChargingCase_BlockDiagram | |
2023-11-20 / N/A Block Diagram / Adobe Acrobat PDF (411 kB) | |
WirelessEarBuds_BlockDiagram | |
2023-11-20 / N/A Block Diagram / Adobe Acrobat PDF (320 kB) | |
238001738_SAR | |
2023-11-20 / 2023-11-20 RF Exposure Info / Adobe Acrobat PDF (5217 kB) |
APP # 2 (2023-11-20) Documents
Confidentiality_Request | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (260 kB) | |
WirelessEarBuds_BOM_Sliding_flexible_plate-L | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (63 kB) | |
ChargingCase_BlockDiagram | |
2023-11-20 / N/A Block Diagram / Adobe Acrobat PDF (411 kB) | |
WirelessEarBuds_BlockDiagram | |
2023-11-20 / N/A Block Diagram / Adobe Acrobat PDF (320 kB) | |
238001738_SAR | |
2023-11-20 / 2023-11-20 RF Exposure Info / Adobe Acrobat PDF (5217 kB) | |
Operational_Description | |
2023-11-20 / N/A Operational Description / Adobe Acrobat PDF (236 kB) | |
FCC_AttestationLetter_COVERED_EQUIPMENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (170 kB) | |
AntennaPart_Specification-L | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2132 kB) | |
ExternalPhotos | |
2023-11-20 / 2024-05-18 External Photos / Adobe Acrobat PDF (3156 kB) | |
WirelessEarBuds_BOM_Sliding_flexible_plate-R | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (63 kB) | |
ChargingCase_BOM | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (57 kB) | |
WirelessEarBuds_BOM_Front_cavity_soft_plate-L | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (73 kB) | |
AntennaPart_Specification-L | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2132 kB) | |
Test_Setup_Photos | |
2023-11-20 / 2024-05-18 Test Setup Photos / Adobe Acrobat PDF (431 kB) | |
FCC_Attestation_Letter_US_AGENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (176 kB) | |
AntennaPart_Specification-R | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2052 kB) | |
WirelessEarBuds_Schematics-2 | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (472 kB) | |
FCC_AttestationLetter_COVERED_EQUIPMENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (170 kB) | |
ChargingCase_Schematics_Hall_Board | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (408 kB) | |
WirelessEarBuds_BOM_Front_cavity_soft_plate-R | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (73 kB) | |
AntennaPart_Specification-R | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (2052 kB) | |
AntennaPart_Specification_L | |
2023-11-20 / N/A Operational Description / Adobe Acrobat PDF (619 kB) | |
Test_Setup_Photos_AppendixE | |
2023-11-20 / 2024-05-18 Test Setup Photos / Adobe Acrobat PDF (5057 kB) | |
Confidentiality_Request | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (260 kB) | |
WirelessEarBuds_Schematics-3 | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (461 kB) | |
FCC_Attestation_Letter_US_AGENT | |
2023-11-20 / 2023-11-20 Attestation Statements / Adobe Acrobat PDF (176 kB) | |
ChargingCase_Schematics_main_board | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (412 kB) | |
WirelessEarBuds_BOM_Main_board-L | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (84 kB) | |
Label_LabelLocation | |
2023-11-20 / 2023-11-20 ID Label/Location Info / Adobe Acrobat PDF (178 kB) | |
AntennaPart_Specification_R | |
2023-11-20 / N/A Operational Description / Adobe Acrobat PDF (623 kB) | |
TUNE_UP | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (73 kB) | |
AuthorizationLetter | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (226 kB) | |
WirelessEarBuds_Schematics_main_board-1 | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (1223 kB) | |
InternalPhotos | |
2023-11-20 / 2024-05-18 Internal Photos / Adobe Acrobat PDF (5002 kB) | |
ChargingCase_Schematics_USB | |
2023-11-20 / N/A Schematics / Adobe Acrobat PDF (307 kB) | |
WirelessEarBuds_BOM_Main_board-R | |
2023-11-20 / N/A Parts List/Tune Up Info / Adobe Acrobat PDF (84 kB) | |
AuthorizationLetter | |
2023-11-20 / 2023-11-20 Cover Letter(s) / Adobe Acrobat PDF (226 kB) | |
UserManual | |
2023-11-20 / 2024-05-18 Users Manual / Adobe Acrobat PDF (3955 kB) | |
WT238001740_BLE | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (4145 kB) | |
Label_LabelLocation | |
2023-11-20 / 2023-11-20 ID Label/Location Info / Adobe Acrobat PDF (178 kB) | |
WT238001740_BLE | |
2023-11-20 / 2023-11-20 Test Report / Adobe Acrobat PDF (4145 kB) | |
238001738_SAR | |
2023-11-20 / 2023-11-20 RF Exposure Info / Adobe Acrobat PDF (5217 kB) |
Grants
TCB Grant from App #1 (2023-11-20)
TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
Certification | ||
Issued Under the Authority of the | ||
Federal Communications Commission | ||
By: |
PHOENIX TESTLAB GmbH Koenigswinkel 10 32825 Blomberg, Germany |
Date of Grant: 11/20/2023 |
OnePlus Technology (Shenzhen) Co., Ltd. |
18C02, 18C03, 18C04 and 18C05, Shum Yip Terra |
Building, Binhe Avenue North, Futian District, |
Shenzhen, China |
Attention: Ariel Cheng , Compliance Project Manager |
NOT TRANSFERABLE |
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
FCC IDENTIFIER: | 2ABZ2-E509A |
Name of Grantee: | OnePlus Technology (Shenzhen) Co., Ltd. |
Equipment Class: | Part 15 Spread Spectrum Transmitter |
Notes: | Wireless Earbuds with Bluetooth |
Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
CC | 15C | 2402.0 - 2480.0 | 0.011 |
Output power is maximum peak conducted. This device has integrated DSS and DTS transmitters certified under the same FCC ID. The highest reported SAR values for the head and simultaneous transmission use conditions are 0.69 W/kg, and 1.07 W/kg at 1g tissues, respectively. |
CC: | This device is certified pursuant to two different Part 15 rules sections. |
EAS Grant from App #1 (2023-11-20)
COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
Certification |
OnePlus Technology (Shenzhen) Co., Ltd. 18C02, 18C03, 18C04 and 18C05, Shum Yip Terra Building, Binhe Avenue North, Futian District, Shenzhen, China |
Date of Grant: 11/20/2023 |
Attention: Ariel Cheng , Compliance Project Manager |
NOT TRANSFERABLE |
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
FCC IDENTIFIER: | 2ABZ2-E509A |
Name of Grantee: | OnePlus Technology (Shenzhen) Co., Ltd. |
Equipment Class: | Part 15 Spread Spectrum Transmitter |
Notes: | Wireless Earbuds with Bluetooth |
Modular Type: | Does not apply |
Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
CC | 15C | 2402.0 - 2480.0 | 0.011 |
Output power is maximum peak conducted. This device has integrated DSS and DTS transmitters certified under the same FCC ID. The highest reported SAR values for the head and simultaneous transmission use conditions are 0.69 W/kg, and 1.07 W/kg at 1g tissues, respectively. |
CC: | This device is certified pursuant to two different Part 15 rules sections. |
Mail To: |
EA829651 |
TCB Grant from App #2 (2023-11-20)
TCB | GRANT OF EQUIPMENT AUTHORIZATION |
TCB |
Certification | ||
Issued Under the Authority of the | ||
Federal Communications Commission | ||
By: |
PHOENIX TESTLAB GmbH Koenigswinkel 10 32825 Blomberg, Germany |
Date of Grant: 11/20/2023 |
OnePlus Technology (Shenzhen) Co., Ltd. |
18C02, 18C03, 18C04 and 18C05, Shum Yip Terra |
Building, Binhe Avenue North, Futian District, |
Shenzhen, China |
Attention: Ariel Cheng , Compliance Project Manager |
NOT TRANSFERABLE |
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
FCC IDENTIFIER: | 2ABZ2-E509A |
Name of Grantee: | OnePlus Technology (Shenzhen) Co., Ltd. |
Equipment Class: | Digital Transmission System |
Notes: | Wireless Earbuds with Bluetooth |
Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
CC | 15C | 2402.0 - 2480.0 | 0.011 |
Output power is maximum peak conducted. This device has integrated DSS and DTS transmitters certified under the same FCC ID. The highest reported SAR values for the head and simultaneous transmission use conditions are 0.69 W/kg, and 1.07 W/kg at 1g tissues, respectively. |
CC: | This device is certified pursuant to two different Part 15 rules sections. |
EAS Grant from App #2 (2023-11-20)
COPY |
FEDERAL COMMUNICATIONS COMMISSION WASHINGTON, D.C. 20554 GRANT OF EQUIPMENT AUTHORIZATION |
COPY |
Certification |
OnePlus Technology (Shenzhen) Co., Ltd. 18C02, 18C03, 18C04 and 18C05, Shum Yip Terra Building, Binhe Avenue North, Futian District, Shenzhen, China |
Date of Grant: 11/20/2023 |
Attention: Ariel Cheng , Compliance Project Manager |
NOT TRANSFERABLE |
EQUIPMENT AUTHORIZATION is hereby issued to the named GRANTEE, and is VALID ONLY for the equipment identified hereon for use under the Commission's Rules and Regulations listed below. |
FCC IDENTIFIER: | 2ABZ2-E509A |
Name of Grantee: | OnePlus Technology (Shenzhen) Co., Ltd. |
Equipment Class: | Digital Transmission System |
Notes: | Wireless Earbuds with Bluetooth |
Modular Type: | Does not apply |
Grant Notes | FCC Rule Parts | Frequency Range (MHZ) | Output Watts | Frequency Tolerance | Emission Designator |
CC | 15C | 2402.0 - 2480.0 | 0.011 |
Output power is maximum peak conducted. This device has integrated DSS and DTS transmitters certified under the same FCC ID. The highest reported SAR values for the head and simultaneous transmission use conditions are 0.69 W/kg, and 1.07 W/kg at 1g tissues, respectively. |
CC: | This device is certified pursuant to two different Part 15 rules sections. |
Mail To: |
EA516131 |
Applications for this FCC ID
Form App # 1 (2023-11-20)
Application for Equipment Authorization FCC Form 731 TCB Version |
WILLFUL FALSE STATEMENTS MADE ON THIS FORM ARE PUNISHABLE BY FINE AND IMPRISONMENT
(U.S. CODE, TITLE 18, SECTION 1001), AND/OR REVOCATION OF ANY STATION LICENSE OR
CONSTRUCTION PERMIT (U.S. CODE, TITLE 47, SECTION 312(a)(1)), AND/OR FORFEITURE
(U.S. CODE, TITLE 47, SECTION 503).
Form App # 2 (2023-11-20)
Application for Equipment Authorization FCC Form 731 TCB Version |
WILLFUL FALSE STATEMENTS MADE ON THIS FORM ARE PUNISHABLE BY FINE AND IMPRISONMENT
(U.S. CODE, TITLE 18, SECTION 1001), AND/OR REVOCATION OF ANY STATION LICENSE OR
CONSTRUCTION PERMIT (U.S. CODE, TITLE 47, SECTION 312(a)(1)), AND/OR FORFEITURE
(U.S. CODE, TITLE 47, SECTION 503).