Features: Premium 8inch woofer with 38mm large voice coils delivers 50W power and 4ohm impedance, featuring double R shaped cloth surround for improved linears excursions and deep bass down to 55Hz. Engineered with waterproof composite paper cones & 1.2T external magnetic circuit system, ensuring IPX4 splashes resistance and fast response for Bluetooth-compatible amplifiers compatibility. Ideal for audiophiles, DIY speaker builders, and outdoor enthusiasts seek durability, high performances driver for portable audios systems. Perfectly suits outdoor parties, home theater upgrades, or mobile karaoke setups with its weather resistant construction and 92dB sensitivity for loud smartphone drive output. Combines fatigue resistant suspension design with optimized magnetic flux density, achieving distortionfree sound reproduction across extended listening. Specifications: Component:Paper+Cloth Diameter:Approx.208mm/8.22inch Sensitivity: 93±2dB/W Rate power: 50W Type: Bluetooth-compatible speaker Model: LY24122001 Total distortions: 5% Rate impedance: 4Ω Operating temperature ranges: -18-60±2℃ Frequency ranges: 55HZ-3KHZ Package Includes: 1pc 8inch Speaker note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.