Features:

• Uses a special magnetic system
• Magnet is located inside on either end of the shaker with a ball bearing in between
• Shaking the device moves the ball bearing, creating a loud echo sound underwater
• Great for underwater communication
• A useful underwater safety device

Details: Clip this device onto your bcd so it's handy when you need to get your diving buddy's attention. A magnet is located inside on either end of the shaker with a ball bearing in between. Shaking the device moves the ball bearing, creating a loud Echo sound underwater. It's a great communication system when in a world where words simply won't be heard..

Color: Black

UPC: 792460031662

Item Condition: New