The ZH-610S is a compact, highly intelligible speaker suited to public address announcement applications. Its external speaker component finished with powder coating, and stainless steel bracket and screws ensure the unit's weatherproof capability. Specifications : Rated Input : 10 W Rated Impedance : 8 Ω Sound Pressure Leve : ≥ 107dB (1W, 1m) Frequency Response : 315Hz - 12.5 KHz Dimensions : 172 (W) x 161(H) x 188 (D) in mm Weight : 1 kg