BLUETOOTH V5.1 WITH APTX TECHNOLOGY - Delivers high quality with low latency and enhanced quality. WOODEN ENCLOSURE - All wooden enclosure minimizes acoustic resonance. TI PCM9211 digital decoding chip for precise audio processing. UNMATCHED SOUND QUALITY - A 1-inch tweeter and 4-inch woofer with a Class-D amplifier and 42W RMS total power output. VERSATILE CONNECTIVITY - R1380DB is supporting inputs like Optical, Coaxial, Line In, and Bluetooth. EASY CONTROL - R1380DB comes with a remote control that helps you to control from a distance. Side panel control at one of the speakers for easy operation.