Multipurpose Safety Fail-Safe Monitoring Simple Operation MarineLink® Communication Battery Monitoring System Adjustable Audible Alarm Portable Base Station Dual Power Operation Internal Antennae Water Resistant Base Station Lightweight Wireless Lanyard Integrated Lanyard Belt Clip 30 Hour Battery Life Water Activated Lanyard Alarm Waterproof & Marine Tough Patented Technology 2 Year Warranty       (hover Overview features)