Type: On-Wall/In-Wall 3.7" Shallow Profile Speaker, Design: 2 Way, Driver Size : HF 1" dome tweeter, LF, 4" woofer, Amplifier Power: 60 - 100 watt, Nominal Impedance: 6Ω, Sensitivity : 85dB, Frequency Response : 70Hz20kHz, Dimensions (WxHxD):220mm x 350mm x 93mm, Mounting Options: Key-hole bracket fitted, Accessories:IWO WB 62 (In wall bracket) sold separately.Weight:3.7kg