Wired connection with the Sub. 

Driver Unit: 6.5''+2.5''X2

Output Power: 25W + 15Wx2 RMS

Frequency Reponse: 40-20K Hz 

S/N Ration: >=75dB

Separation: >=50dB,  MP5, Optical, Coaxial, ARC, Bluetooth, USB, SD, Remote Control.