E25HD Luna HD Total power output: 15W x 2 (Treble) + 22W x 2 (Bass) SNR: ≥85dBA Frequency response: 50Hz ~ 20 kHz (± 6dB) Input type: Bluetooth 4.0/Auxiliary/Optical Input sensitivity: 650mV ± 50mV Adjustment:Touch keys, remote control Bass & mid-range driver:3 inch (82mm) Treble driver: 3/4 inch (19mm) silk dome Voltage:100-240V