Description: 3inch 4Ω 15W Audio Speaker High\/Bass Stereo Loudspeaker Specification: Material:Carbon fiber and metal Size: Front diameter: 89mm; Thickness: 41mm; Hole distance: 83mm; Magnet: 45mm Speaker: 70mm Impedance: 4 Omega\/4Ω Power: 15W Sensitivity: over 90DB Features: 1.Make of Carbon fiber and metal material,durable and easy to install. 2.Suitable for replacement of old speakers, assembled houses, automobiles, ships, and so on. 3.You can freely adjust the bass and treble, as a creative DIY speakers. Package Included: 1×Audio Speaker More Details: