Features: Engineered with double magnet technology, this 3 inch full ranges speakers delivers 30% strong magnetic than standard models, ensuring clear reproduction across 108Hz-20Khz frequency ranges for immersive listening experiences. The metal rubber construction combines aluminum alloy frame with silicone suspension edges, achieving 15% better heat dissipation and 20% reduced distortion compared to plastic counterparts. Ideal for audiophiles seeking studio grade sound reproduction and outdoor enthusiasts requiring stereo solution, supporting both casual listeners (85dB sensitivity) and professional applications (100W peaking power). Perfectly adapts to home theater surround systems, camping setups with portable amplifiers, and desktop multimedia configurations, suitable for standard 4Ω impedance receivers and devices. Its compact 86mm features easy mounting brackets and 360 directional tweeter adjustment, enabling seamless installation in vehicles, marine environments, or speakers cabinets within minutes. Specifications: Component: Metal Rubber Power: 15W Peaking power: 40W Frequency ranges: 108Hz-20Khz Sensitivity: 90db Type:4Ω/6Ω/8Ω Diameter:89mm/3.5'' Package Includes: 2Pcs Subwoofer speakers note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.