How much does this cost to the nearest dollar?

Goldwood Sound, Inc. Stage Subwoofer, Shielded 4 Woofers 70 Watt Each 8ohm Replacement 2 Speaker Set
These Goldwood Sound 8 ohm 4 inch drivers have a max wattage of 70 watts each and are designed and engineered right here in the USA. Each woofer features a 10oz shielded magnet with rolled foam surround and poly laminated cone. These woofers are high end, pro audio transducers optimized for all musical instrument, DJ, car audio and professional applications. 2 Goldwood Sound shielded 4 woofers, 40 watts RMS and 70 watts Max each, 70 - frequency response, 86dB SPL, 8ohm 1 aluminum voice coils, 10oz

Price is $31.00
Price: $30.99