TheShockwave is a 4-speaker system - 2 re-entrant horn speakers and 2 tweeters. Moon phase indicatore, temperature and barometer readings. Select between real-time clock or timer. Remotely turn speakers off. Mix and match 2 sounds of your choice at any time. 2.7" color LCD remote display. Tugged ABS housing. 100 pre-loaded sounds, 1000 sound capacity. Shockwave introduces four FoxPro Performance features: Fox Motion, Fox Fusion, Fox Pitch & Fox Data.