Dualcore stability and protection Dualcore design using two TPA3221 amplifier chips provides stable operation and comprehensive protection. The TPA3221 power cores deliver efficiency, low power consumption, and HD sound quality. Power and performance 100W x 2 plus 200W subwoofer output in a 2.1channel Bluetooth digital amplifier configuration. Builtin Bluetooth for wireless audio streaming. Includes a power switch for easy on/off control. Sound quality and adjustments Uses quality components to preserve sound quality. Supports tuning of and low frequencies for convenient sound shaping (bass and treble adjustments). Build and materials Qualityfirst construction with exquisite materials designed to support reliable performance and durability. Use scenarios Home stereo upgrade: Connect two bookshelf or floorstanding speakers and a subwoofer, then stream music wirelessly from a smartphone or tablet via Bluetooth. Small living room or apartment home theater: Power front channels and a sub for enhanced dialogue and bass, with convenient Bluetooth playback from multimedia devices. DIY audio or AV rack integration: Serves as a central 2.1 amplifier to fit into custom audio installations, media consoles, or hobby projects requiring strong output and adjustable sound. Compatibility and scope Builtin Bluetooth enables wireless connection to Bluetoothenabled devices. Designed as a 2.1channel digital amplifier with two 100W channels and a 200W sub channel, using dual TPA3221 amplifier chips for reliability and performance.