Model Number: JR-S5505 Key Specifications/Special Features: 5.1 speaker, 5.1 multimedia speaker, multimedia speaker 1) output 20w+5wx5. 2) low thd,. 3) wooden case,. 4) fashionable design. 5.1 speaker, 5.1 multimedia speaker, multimedia speaker,. Output power: 20w + 5w x 5. Frequency response: 60hz~18khz. S/n ratio: =70db. Thd: =0.3%. Subwoofer driver unit: 4o, 4". Center speaker driver unit: 4o, 3". Front surround driver unit: 4o, 3" x 2. Rear surround driver unit: 4o, 3" x 2. Function: power, led, volume, treble, bass and remote control. Main Export Markets: North America