FCC Test Report for TOZO Bluetooth Earbuds

Report Overview

This document presents the FCC Test Report for Bluetooth Earbuds, model numbers T10, T5, T6, T8, T9, T12, T15, T20, T30, T40, T50, T60, T80, manufactured by Shenzhen Worgo Technology Limited. The testing was conducted by Shenzhen HUAK Testing Technology Co., Ltd. from April 4, 2019, to April 11, 2019. The purpose of this report is to demonstrate compliance with FCC Rules and Regulations Part 15 Subpart C Section 15.249 and ANSI C63.10: 2013 standards.

Test Result Certification

All tests performed, including Conducted Emissions Test, Radiated Emission Test, Out of Band Emissions, Occupied Bandwidth Measurement, and Antenna Requirement, resulted in a "PASS" status, indicating compliance with the applicable FCC regulations.

Applicant and Manufacturer Details:

• Applicant/Manufacturer: Shenzhen Worgo Technology Limited
• Address: 501, Block C, Sanying Building, Dalang Community, Xin'an Street, Bao'an District, Shenzhen, China

Product Information:

• Product Name: Bluetooth Earbuds
• Trade Mark: TOZO
• Model Numbers: T10, T5, T6, T8, T9, T12, T15, T20, T30, T40, T50, T60, T80
• FCC ID: 2ASWH-T10
• Antenna Type: Chip Antenna (2dBi Gain)
• Bluetooth Operation Frequency: 2402-2480MHz (79 Channels)
• Modulation Type: GFSK, π/4DQPSK, 8DPSK
• Power Source: DC 3.7V from Battery or DC 5V from Micro USB

Measurement Uncertainty

The report details measurement uncertainties for various tests:

• Conducted Emission Expanded Uncertainty: 2.23dB, k=2
• Radiated emission expanded uncertainty (9kHz-30MHz): 3.08dB, k=2
• Radiated emission expanded uncertainty (30MHz-1000MHz): 4.42dB, k=2
• Radiated emission expanded uncertainty (Above 1GHz): 4.06dB, k=2

Test Procedures Summary

The testing involved setting up the Equipment Under Test (EUT) in a shielded room for conducted emissions and a 3m chamber for radiated emissions. Measurements were performed with the EUT continuously operating, rotated across three axes (X, Y, Z), and with varying antenna heights and polarizations to maximize emissions. All test modes were investigated, and worst-case results were reported.

Key Tests Conducted:

• Conducted Emissions Test: Measured power line emissions according to FCC Part 15.207.
• Radiated Emission Test: Assessed field strength of radiated emissions below 1GHz and above 1GHz, adhering to FCC Part 15.209(a) and 15.249(a).
• Out of Band Emissions: Verified attenuation of emissions outside specified frequency bands as per FCC Part 15.249(d).
• Occupied Bandwidth Measurement: Determined the 20dB bandwidth for GFSK, π/4DQPSK, and 8DPSK modulation types across low, middle, and high channels, complying with FCC Part 15.215(c).
• Antenna Requirement: Confirmed the antenna design adheres to FCC Part 15.203 and 15.249, using a Chip Antenna with 2dBi gain.

Detailed results, including frequency tables, levels, limits, and margins for each test, are provided in the full report.