The AQUA STROBE provides 70 flashes of intense white light per minute in a compact submersible housing. It will get you noticed. This outdoor and marine survival light is designed to be a real lifesaver. The Aqua Strobe operates on a single AA battery and floats head up in water. Clipped to your body or gear, this light is sure to get the attention of emergency services throughout the world. The Aqua Strobe includes Velcro(R) strap and lanyard for secure attachment.