Acoustic Audio by Goldwood Surround Floorstanding Bluetooth Speaker, Set of 2, Black/Cherry/Black (TSi500) RMS system power: 500 watts, efficiency: 94Db, frequency response: 35hz-20 kHz, multi function remote control, integrated Audio amplifier Built in Bluetooth receiver, Plug and play connections, top panel controls with illuminated display, 3.5mm aux to RCA wire, RCA to RCA jack cables and 12' raw speaker wire included USB/SD card Reader, two side panel microphone inputs with volume and echo controls, side panel bass, treble and Master volume controls, stereo RCA inputs, 4-way speaker design 8" extreme bass side subwoofer, two 4.5" full range woofers, 1.5" crystal clear tweeter, main powered speaker drives 2nd passive speaker with included raw speaker wire, (H x W x D): 38" x 6.375" x 14" Applications include home entertainment Television system, laptop or PC, DVD player, gaming, MP3 player, cell phone, tablet or any other device with a 3.5mm headphone output or RCA Audio output