Powerful Function: This module supports changing the device name and password, includes sleep aid songs, and supports firmware updates, among other features. This enables easy personalization, security, and ongoing improvements. Advanced Decoding Chip: The decoding chip provides improved decoding performance, supports remote firmware updates, and enables related functions for better overall operation. Easy to Operate: The module's keys are feature rich and simple to use, allowing true stepless tuning rather than digital multiband graded adjustment for precise control. Independent Volume Control: Subwoofer and stereo outputs have separate volume controls, while the total volume is adjusted with a mechanical potentiometer. The current volume position is clear at a glance. Use scenarios: Home audio setup: the device name and password for security, use sleep aid songs for relaxing playback, and perform firmware updates remotely as needed. Audio tuning environments: Take advantage of true stepless tuning and separate subwoofer/stereo volume controls to achieve precise balance and sound quality. Remote maintenance and updates: Update firmware remotely to access features or fixes without onsite service.