This is a PA equipment set that can be used immediately. I own several similar sets, and this is one of the lightest (the power amp and case are light, although the total weight is still around 30kg). The set contents, from top to bottom: SONY WRR-840 / Wireless Receiver, B-band, 2 channels, 30 frequencies each, includes 2 wireless microphones (handheld microphone WRT-810, B-band, 30 frequencies) , 2 whip antennas, and 2 coaxial cables with BNC connectors. HPA SY-P1002 / Mixer, Mic In (cannon/phone) x 6, Stereo LINE In x 4, Mic In equipped with 3-band shelving EQ, PFL equipped on each input channel, Master Out is mono x 2. YAMAHA GQ2015 / Graphic Equalizer, Stereo 15-band, 40HZ-HPF equipped. Behringer KM750 / Power Amplifier, Stereo 8Ω 200W/ch, 4Ω 400W/ch. The case is SKB 6U, and the back is fully patched between the wireless receiver and mixer, the mixer and equalizer, and the equalizer and power amplifier. The speaker outputs are via cannon male receptacles (2+, 3-) x 2. I have used and rented this set about 30-40 times a year for announcements in event venues, small live performances, and weddings, and it has been very useful with no major problems. This time, I have replaced the power amplifier with a lighter one, and the total weight is now around 26-27kg, making it easier to handle. Please understand the above before purchasing.