Edifier S351DB 2.1 Bluetooth Multimedia Speakers w/Subwoofer - 3.5mm/Optical/BT 4.1 AptX Wireless Sound/ Remote Control/8inch Booming Subwoofer Classic Style. Modern Sound Input: PC, AUX, Optical, Coaxial, Bluetooth Titanium Dome Tweeters 8-Inch Subwoofer Bluetooth 4.0 aptX Wireless Remote INPUT PC, AUX, Optical, Coaxial, Bluetooth INPUT SENSITIVITY PC:R/L:600±50mV SW:270±20mV AUX:R/L:400±50mV SW:200±20mV Optical/Coaxial:R/L:400±50mFFS SW:200±20mFFs Bluetooth:R/L:400±50mFF SW:200±20mFFs TOTAL POWER OUTPUT R/L(treble):15W+15W, R/L(midrange and bass): 25W+25W, SW:70W SIGNAL-TO-NOISE RATIO R/L: ≥80dB(A) SW: ≥ 85dB DISTORTION R/L: ≤0.2% SW: ≤0.2% FREQUENCY RESPONSE R/L:160Hz-20KHz SW:40Hz-160H BASS UNIT 8inch MIDRANGE / BASS UNIT 3.5 inch TREBLE UNIT 3/4 inch MAINS VOLTAGE 100-240V PASSIVE DRIVER Active RMS 150W CABLE LENGTH (2.5M/8.2ft); 3.5mm-RCA audio(1.7M/5.5ft). Speaker connecting (5M/16ft) SPEAKER STAND DIMENSION Subwoofer:312x265x289mm. Satellites:156x127x217mm GROSS WEIGHT 19.1kg