The set consists of a digital amplifier with USB & Bluetooth input, 2 wired microphones, a pair of 5"/13cm loudspeakers as well as 2 5M speaker cables each. The amplifier has:
Digital Display
BLUETOOTH connection from any mobile device
2 Microphone inputs on the front with volume adjustment and ECO
General Volume
Control Bass and Treble control
Balance R/I
USB reading keys
Input selector
"Voice changer" effect

Technical specifications.