Dolphin Liberty 400The New Generation of Cordless Pool Cleaning Maytronics Dolphin Liberty 400 is a new cordless design for unmatched agility and inductive charging. With powerful, intensive scrubbing action and a superior filtration system, you can get the same reliability and service as other Dolphin productsnow cordless! Specifications Ideal Pool Size: Up to 10 x 5 metres Cleaning Coverage: Floor, walls and waterline Cleaning Cycle: 1. 5 hours Brush Type: All terrain