Auto/On Battery-Powered Air Pump Penn Plax B11

Auto/On Battery-Powered Air Pump This pump is automatic! When the power goes off, the pump goes on! It's like life insurance for your fish. All you have to do is plug this pump into the wall and it detects when the power goes out, even when you are not home or asleep. Built-in on-off switch. Can be unplugged from wall and used as a portable pump. Operates on (2) D-Cell batteries. (Batteries not included.) Includes 18" of flexible silicon airline tubing and a small air stone. Each unit measures approximately 5-1/2" x 3-1/4" x 1-1/2". Power cord is approximately 3 feet long. Small clip mounted on back of unit to clip on the edge of bait buckets or your belt. 110V - 60 Hz operation only.