The Ecoblast Pro, is a rechargeable air horn housed in a robust, carry case. Built of strong impact resistance plastic, the Ecoblast PRO is not only loud but also the most cost effective signaling solutions for your race committee. Sustainable and cost effective because it’s the only rechargeable signaling device that refills safely and easily with compressed air. No need for replacement cartridges or chemical signal devices destined for quick landfill. The Ecoblast PRO will offer years of reliable service while providing all the signaling power you’ll need.