The Sonok 15-inch PA system is a 5000W portable, all-in-one unit with a 15-inch speaker, built-in amplifier, rechargeable battery, Bluetooth, USB/SD card playback, and included wireless microphones. Key specifications often include power output (e.g., 50+50W RMS), battery life (e.g., 6-8 hours), wireless microphone range (e.g., 100 meters), and features like a remote control, FM radio, bass/treble/echo controls, and a trolley for portability.