Performance Comparison of Three Full-Duplex Audio Modules

Today, we will compare three full-duplex wireless modules — SA618F22, SA628F30, and SA628F39. Each of these modules offers unique advantages suited to various needs, including long-distance communication, low power consumption, high stability, and flexible configuration and maintenance. By analyzing their features in detail, we aim to help users select the most suitable solution.

SA618F22 Digital Audio Module

The SA618F22 is an embedded full-duplex transmission module that integrates wireless digital data and audio. It supports serial data transmission and can transmit voice signals via I2S digital audio or analog audio interfaces. With a built-in high-speed microcontroller and high-performance RF chip, it adopts wideband spread spectrum technology, offering low power consumption, long-range communication, and flexible frequency adjustment. This module supports multi-channel concurrent transmission and Mesh self-organizing relay networking. Its highly integrated design makes it easy to connect to audio amplifiers, microphones, and speakers for remote wireless transmission.

SA628F30 Full-Duplex Audio Module

The SA628F30 is a cost-effective, highly integrated full-duplex wireless module for data and voice communication. It supports configuration and control via a USB serial connection with PC software and features multi-channel concurrency and Mesh networking capabilities.
Equipped with a high-speed microcontroller, RF chip, and power amplifier, users only need to connect a power supply and speaker to easily achieve long-distance digital voice wireless transmission. It is simple and convenient to use.

SA628F39 Full-Duplex Audio Transmission Module

The SA628F39 is a high-integration full-duplex wireless module for data and voice communication, featuring 8W high power output. It comes with a built-in high-speed microcontroller, high-performance RF chip, power amplifier, ESD protection, and a hardware watchdog chip. The module also includes multiple safety mechanisms such as reverse polarity protection, overcurrent and overvoltage protection, and anti-crash (watchdog) protection, ensuring stable operation in various complex environments.

Long-Range Transmission

SA618F22 Full-Duplex Wireless Digital Audio Module
Ideal for medium-range applications, this module supports up to 8 devices transmitting simultaneously with unlimited reception. It enables long-range wireless transmission with a communication distance of 1–3 km in open environments, while maintaining low power consumption and high stability—suitable for mid- to long-distance voice and data applications.

SA628F30 Full-Duplex Wireless Audio Module
Built on wideband spread spectrum technology, it excels in long-distance communication, offering a range of 3–4 km in open environments. Combined with its MESH relay function, it further extends wireless coverage and improves network stability.

SA628F39 Full-Duplex Audio Transmission Module
With a higher transmission power of 8W, it achieves an extended communication distance of 6–7 km. Designed for demanding environments, it incorporates multiple protection mechanisms to ensure stability, making it suitable for industrial applications and large-area coverage.

Module Configuration & Compatibility – Simplified Setup and Flexible Deployment

SA628F30 Full-Duplex Wireless Data & Audio Module:
Easy to configure via USB-to-serial and PC software for reading and setting parameters. Simply connect power and a speaker to enable remote voice communication. It supports OTA and serial upgrades and offers complete MESH networking capabilities, making it ideal for compact and fast deployment scenarios.

SA618F22 Full-Duplex Wireless Module:
Supports both serial data and full-duplex voice communication, with I2S digital and analog audio interfaces compatible with various audio devices. It can be configured flexibly via serial commands or PC tools, supports OTA and serial port upgrades, and features multi-channel concurrent communication and MESH relay functions for various networking needs.

SA628F39 High-Performance Full-Duplex Audio Module:
Configured via USB-to-serial and PC software, it features efficient heat dissipation and a thermal base (optional if configured for 8-user talk mode, which reduces size and weight). It supports OTA and serial upgrades and is ideal for large-scale, complex environments. Its robust MESH relay function ensures efficient communication across extensive applications.

Power Consumption & Battery Life

SA618F22 Full-Duplex Digital Audio Module:
This module is characterized by low power consumption, making it well-suited for long-duration operation, particularly in low-power application environments. Its energy-efficient design helps extend battery life, ideal for scenarios requiring prolonged usage cycles.

SA628F30 Full-Duplex Wireless Audio Module:
It features a low-power sleep mode and is designed for continuous operation with relatively low power usage. Its energy-saving design makes it suitable for frequent use in scenarios where battery life is a key consideration.

SA628F39 Full-Duplex Audio Transmission Module
Despite offering higher power output, it still includes an ultra-low-power sleep mode. While its overall power consumption is higher due to its performance capabilities, the module provides high reliability and long-distance transmission, making it ideal for high-demand applications.

The three modules—SA618F22, SA628F30, and SA628F39—each offer distinct advantages across different aspects, including communication range, power efficiency, and flexible configuration and maintenance. They are all capable of meeting diverse application needs.