S2000MKIII Powered Bluetooth Bookshelf Speaker Bluetooth V5.0 with Qualcomm aptX HD decoding Continuous Undistorted Power Professional Wireless Remote Control 5 ½’’ Aluminium diaphragm drivers for ultimate bass response Patent-pending planar diaphragm tweeters that adapt to a wide range of acoustic conditions High efficiency Class-D digital power amplification Electronic crossovers and dynamic control based on dual advanced DSP chips Supports digital audio signal with sample rate up to 24BIT/192KHZ Listening presets: Monitor, Dynamic, Classical, and Vocal OLED LCD screen displays source/volume/sound effects modes for more convenient use PVC side panels with matte black finish