HT Enterprises Oxymax Solar Powered Air Pump Marine Accessory - On those long days on the water, your bait won't always stay fresh for the fish. HT Enterprises designed this handy air pump to keep your bait alive and fresh so you can get more bites. Insulated Inner System Keeps Water From Entering And Corroding Or Freezing Mechanism Solar Panel Absorbs During Day To Charge System - Will Then Operate Up to 11 Hours in Darkness Battery Operated Back-up Runs on 3 V System - Also Includes Both 12V/DC Car Power Adapter And Battery Clamp Cable