Output power: 3W * 2;
Power requirement: USB DC 5V (2A effect is better);
Speaker size: 2 inches * 2;
Volume control: independent volume line control;
Signal-to-noise ratio: >65dB;
Frequency response range: 20Hz-18kHz;
Sensitivity: 500mV;
Speaker impedance: 4 O;
Speaker size: 70.6 * 80 * 110mm;
Net weight: 0.5KG ( 1.1 lb);
Color: pink;