These VocoPro PV802 Vocal Monitors also include treble and master bass controls so that you can attain the best tone and quality for your songs and soundtracks. VocoPro PV802 Powered Vocal Monitors: * Includes two PV802 speakers (1 powered and 1 unpowered) * 1 speakon to speakon speaker cable * 1 left/right RCA audio cable and 1 power cord * Power rating: 400W (200W + 200W) * Self-powered speakers do not require an external amplifier * On-board Master Volume control * Master Bass and Treble controls