WOW! Finally, a battery operated beacon that does the job. This high quality beacon utilizes 20 ultra bright red LEDs in a unique arrangement that simulates the rotating look. Fantastic for party tables where electrical is not available. Also perfect for POP displays. Powered by 4 AA batteries (not included), also has a standard jack for an optional 110V power adaptor (not included). The manufacturer claims up to 144 hrs. continuous use from one set of batteries. Powerful magnet on the bottom.