2 Yamaha BR12 12" 2-way professional loudspeakers.its capable of 300 watts of program power handling.it utilizes 1/4-inch phone jacks for input and parallel connection with other speakers.also in the pic is a vintage radioshack 4-channel stereo mixer with sound effects buttons, a crossfader,and individual channel faders.there's also a heavy ipr-1600 power amplifier. It's a 2-channel,rack mountable unit that delivers 800 watts per channel at 2 ohms or 530 watts per channel at 4 ohms.key features include DDT speaker protection and 100hz crossovers on each channel.and lastly two 1/4 inch(6.3mm) is male connectors on both ends,suitable for connecting instruments to amplifiers,and one power cord.