Edifier R980T Powered 2.0 Bookshelf Speakers - Studio-Quality Sound with Dual RCA Input Suitable for Desktops, Laptops, TV, Record Players and More Features: • Active bookshelf speaker system with 24W total power output • 100% MDF wooden enclosures to minimize acoustic resonance • Magnetically shielded speakers • Calibrated, flared bass reflect port in front of the speaker cabinet • Dual RCA inputs for connectivity to multiple audio sources • Universal 110V-240V power supply Specifications TOTAL POWER OUTPUT: RMS 12W × 2 THD + N: 10% SIGNAL-TO-NOISE RATIO: ≥85dBA DISTORTION: ≤0.5% INPUT TYPE: Dual RCA input (RCA - RCA and RCA to AUX) FREQUENCY RESPONSE: 70 HZ-20 kHz +/-9db INPUT SENSITIVITY: PC: 700±50mV AUX: 550±50mV (THD + N=1%) BASS UNIT: 4 inch (106mm), 6Ω TWEETER UNIT: Φ13mm silk domed tweeter, 4Ω DIMENSION: 140(W) × 226(H)× 197(D)mm