Polk Audio PSWi225 like new condition but I lost the transmitter.
$50
Product highlights:
subwoofer makes a 2.4GHz wireless connection with your receiver via a compact transmitter
bass-reflex (ported) enclosure
100-watt RMS (continuous) amplifier
8" down-firing Dynamic Balance® long-throw driver
frequency response 34-250 Hz
continuously variable 60-160 Hz crossover
phase switch
signal-sensing auto on/off
line-level and unfiltered LFE inputs
5-ft. RCA stereo cable for connecting transmitter to your A/V receiver
transmitter: 5"W x 1"H x 3"D
subwoofer: 12-1/2"W x 13-1/8"H x 13-1/16"D
weight: 21 lbs.
