Edifier R1700BT 2.0 Bluetooth Bookshelf Speaker – Total Power Output: RMS 15W×2 + 18W×2 – SNR: =85dBA – Distortion: =0.5% – Input Sensitivity: PC:700±50mV, AUX:550±50mV – Tweeter: F19mm silk dome, 6ohm – Subwoofer: 4″(F116mm), 6ohm – R1700BT-BK – 2 Years Limited Warranty