Power amplifier output: 14W + 14W (LEFT speaker contains the power amplifier) 3-inch woofer/0.5-inch tweeter Bass reflex port Specially tuned 8kHz crossover circuit RCA terminals(stereo) and 3.5mm stereo mini unbalanced input(the stereo 1/8" mini jack is preferred) Volume control Power switch/Power LED Dedicated AC adapter included (TASCAM PS-P1524E)