Pioneer TS-WX130DA 160W Max Single 8" x 5-1/4" Sealed Under Seat Car Audio Subwoofer Enclosure w/ Built-In Amplifier Wired remote included / FREE ALPHASONIK EARBUDS Extremely compact, yet powerful subwoofer system 160 watt Built-in MOSFET amplifier Wired remote to control gain, phase, and LPF Enclosure size: (WxDxH): 11"x 7-7/8" x 2-3/4"