Polk Audio db840 8-Inch Single Voice Coil Subwoofer (Single, Black) 8-inch single-coil subwoofer loudspeaker (single)|Power handling: 180 watts continuous, 360 watts peak|Frequency response: 30-200 Hz|Marine certified for use in boats of all types| High Speed transmission : The Cable charge much faster than most standard cables and transfers data up to 480M bits via and high purity oxygen free copper core. Connected well with fast charging adapter, ensure the high speed and stability of charging Compatible with: iPhone X/8/7/7Plus/6s/6sPlus/6/6Plus/SE/5/5s/5c, iPad4/Mini/Mini2/Mini3/Mini4/Air/Air2/Pro, iPod touch5/touch6/Nano7/Nano8/Nano9 Designed Integrated single piece head pin designed for heavy charging uses; charge any of your Apple devices with our lightning connector. PACKAGE: 2-PACK Wall Chargers and 2-PACK Lighting Cables.