HQ Power Portable karaoke set. System type: 1.0 system, Speaker placement: Portable, Amplifier: Built-in. RMS rated power: 16 W, Frequency range: 20 - 20000 Hz, Impedance: 4 Ом. Amplifier output power: 16 W, Amplifier/receiver output interface type: RCA. Connectivity technology: Wired, Speaker interface type: 6.3 mm. Housing material: Metal, Plastic