Edifier R1280T - Lifestyle Bookshelf Speakers Brown - 3.5mm AUX/Dual RCA, 42W, MDF Wooden Enclosure Features Active bookshelf speaker system with 42W total power output Dual RCA inputs for connectivity to multiple audio sources Bass, treble and master volume dials located on the side panel Wireless remote control for volume adjustment and mute Calibrated, flared front-facing bass reflect port 100% MDF wooden enclosures to minimize acousticesonance Universal 100V-240V power supply Power Output: RMS 21W × 2 Signal to noise ratio: ≥85dBA Frequency response: 75Hz-18KHz (+/-9dB) Input sensitivity: LPC: 750mV ± 50mV Aux: 550mV ± 50mV Input type: RCA - 3.5mm Auxiliary, RCA Bass driver: 4', 6Ω, with bass reflection port Treble driver: 13mm silk dome tweeter, 4Ω