Wireless HiFi Speakers, 11th Generation Uni-Q (Inspired by LSX), Amplifier Output Power : 50W, Maximum SPL: 95 dB, Amplifier Class: Twin Class D, Digital Input : Mini USB Type B | Mini TOSLINK Optical (combo jack), Analog Input: 3.5 mm AUX, Output: Subwoofer output, Wireless Standard : Bluetooth 4.0 with aptX® codec, Driver Units: Uni-Q driver array: HF: 19mm (0.75in.) aluminium dome, LF/MF: 115mm (4.5in.) magnesium/aluminium alloy cone, Resolution: Up to 24 bit, Sampling Rate: Up to 96 kHz, depending on source resolution, Weight: 2.15 kg