XYS100H is a 2.1 channel Bluetooth audio amplifier board designed to add wireless audio capability to a speaker system. It uses Bluetooth version 5.0 for stable wireless streaming and provides amplified output for a twochannel setup with a dedicated lowfrequency channel. Key specifications Product model: XYS100H Bluetooth version: 5.0 Power supply: DC 526 V, 10 A or above Product name: 2.1 channel Bluetooth audio amplifier board Benefits and features Wireless audio input: Stream audio from Bluetooth 5.0 source devices such as phones, tablets, and other compatible players to your speaker system without cables. 2.1 channel output: Supports two main channels plus a subwoofer channel for a fuller, multi‑room style sound. Flexible power options: Accepts a wide DC input range from 5 V to 26 V with a supply of 10 A or higher to support reliable performance. Easy integration: Designed to be incorporated into DIY audio projects or existing speaker enclosures, enabling Bluetooth input and amplified output without complex modifications. Reliable performance: Bluetooth 5.0 provides improved connection stability and range over earlier versions, contributing to consistent playback. Practical applications DIY Bluetooth home stereo: Convert a pair of speakers into a wireless, Bluetoothenabled stereo system with a subwoofer for richer bass. Speaker enclosure upgrade: Integrate the XYS100H into an existing cabinet to add wireless input and 2.1 channel amplification without redesigning the entire setup. Educational or prototype projects: Use the board for experiments or demonstrations in maker spaces, classrooms, or hobbyist workshops to explore wireless audio amplification and sound compatibility.