Additional Module to fit into your Shanling M30: 655 Module: The new digital player module features the powerful Octa-Core Snapdragon 665 CPU and 5.8" 1080x2160 touch screen for your Shanling M30. This module allow your M30 to run a closed Android 10 system, deeply customized for optimal sound quality and smooth operation. It comes ready with wide support for playback of local files and a range of music streaming services. High Power Amplifier: Featuring an upgraded high-power amplifier module, a discrete audio architecture offering up to 3.8W @ 32 0 Output power. Designed with a clear focus on the most demanding full-size headphones on the market, further adjusted over many months of testing with the most high-end models of headphones.