The Infinity Start System is an economical, easy-to-use start system. Strobe and speaker are built into the lightweight unit for easy portability. The Infinity provides your swimmers with a fair and audible horn start. A highly visible strobe light automatically flashes as the horn sounds, providing fair starts to hearing-impaired athletes. The microphone has a false start recall feature that enables the starter to signal a false start and immediately alert the competitors.40-watt corrosion resistant speaker, wired microphone with start button, internal gel-cell battery, and 115V charging capability. Tripod is sold separately. Two-year limited warranty included. Sorry, no free, expedited or express shipping with this item. Shipping will be calculated and charged separately. Please call for quote.