OrcaTorch SD01 Pro is a compact and powerful dive beacon, powered by one AAA battery for a max runtime of 70 hours. 

Featuring 

• Powered by 1 x AAA battery 
• Modes: Constant on ONLY 
• Runtime: 37h / 70h 
• Size: 77.5 (Length) 
• 19mm (Diameter)
• Net Weight:25g 
• Accessories: O-rings, lanyard, AAA battery included 
• Available Colors: Blue, Red, Green, White, Orange 
• Waterproof underwater: 150m(500 feet) 
• Note: For each signal light, only one color can be applied.