BT 5.3 HiFi stereo amplifier with remote control Remote control for master volume and tone: adjust volume, treble, and bass to match your listening needs. Compact and simple design with a builtin speaker protection circuit: suitable for bookshelf speakers, computer/desktop setups, and other passive speakers. Wide input options: supports Bluetooth, UDisk, and 3.5 mm AUX input, compatible with most home passive speakers. definition sound: two lowdistortion TPA3116 performance amplifier chips deliver clear, detailed audio. Broad compatibility and reliable performance: designed to pair with common home passive speakers for improved desk, shelf, or room audio. Use scenarios Living room or study: pair with bookshelf passive speakers and a streaming device for enhanced TV/music playback. Computer desk or home office: upgrade PC audio with Bluetooth or AUX input for clearer music, games, and videos. Small apartment or dorm room: drive small passive speakers for immersive music or movie sound without clutter. Key attributes Function: Bluetooth 5.3 HiFi stereo amplification with remote tone and volume control; multiple input options; builtin protection. Compatibility: works with most home passive speakers via Bluetooth, UDisk, or AUX input. Size: compact and simple design optimized for desks, shelves, and small spaces. Material and construction: built for reliability with a focus on preserving audio clarity through performance chips. Performance: dual TPA3116 chips deliver definition sound with low distortion for clear highs and solid bass.