S2000MKIII Powered Bluetooth Bookshelf 2.0 Speaker IR remote control Planar diaphragm tweeters 5 ½' aluminium diaphragm drivers PVC side panels with matte black finish Bluetooth V5.0 with Qualcomm aptX HD decoding High-efficiency Class-D digital power amplification Listening presets: Monitor, Dynamic, Classical, and Vocal OLED LCD screen displays source, volume, sound effects modes Digital audio signal with a sample rate up to 24BIT/192KHZ Electronic crossovers and dynamic control based on dual advanced DSP chips Specifications TOTAL POWER OUTPUT L/R (treble): 15W+15W RMS L/R (mid-range bass): 50W + 50W RMS SIGNAL-TO-NOISE RATIO ≥90dB(A) NOISE LEVEL ≤25dB(A) INPUT SENSITIVITY Line 1 input: 800±50mV, Line 2 input: 600±50mV Bluetooth input: 450±50mFFs Optical/Coaxial input: 350±50mFFs FREQUENCY RESPONSE 45Hz~40KHz Inner Carton 505 x350 x 412 mm,(LxWxH) 19.39kg (gross weight)