How much does this cost to the nearest dollar?

SparkFun MP3 Trigger - 18 Trigger inputs to Alternate Functions Random & sequential Track Selection Transport Controls Even Volume up/Down Real-Time Volume Control Full-Duplex Serial Control
MP3 Trigger board is built to make MP3 sound integration easier than ever. The board has 18 external trigger pins that will directly trigger pre-selected MP3 tracks, & a full-duplex serial control port that provides full transport control, remote triggering for up to 256 tracks, & fast real-time volume control. MP3s are stored on FAT16 formatted SDSC or FAT32 formatted SDHC micro-SD flash memory cards. Optimized code can achieve stereo playback from a wider range of cards. The heart of the board is the Cypress PSoC microcontroller which serves up MP3 data to a

Price is $54.00

Price: $53.5