• Horn works both underwater and on the surface
• Small on size, BIG on decibel
• Easy to connect and disconnect
• Low maintenance
• Requires just a tiny bit of air to active the horn
• Approx surface range of 0.25 - 0.50 miles
• Volume: 115 - 125 dB (approx)
• ONLY Fits standard power inflator

Instructions:

To Use:
Sonic Blast can be easily installed by connecting the appropriate ends to the BC hose and the BC inflator. It will become operational once ressurized air is put through the BC hose.  
 
General Maintenance:
Is important to immerse and clean the exterior of Sonic Blast in freshwater after each dive. Sound the Sonic Blast several times to expel any water trapped within. Dry and store in moisture-free place.