Madimack Freedom Cordless Robotic Cleaner with 4.5 hour cleaning cycle Untangle yourself with Madimack’s GT Freedom and cordless cleaning. Intelligent navigation, APP control, premium lithium-ion battery and advanced InverMAC technology, brings an upgraded cleaning experience for you and your pool. Benefits: - 8 hours of power - Powerful and efficient - Full feature APP control - Suitable for all pool surfaces - Cordless technology - Inverter technology - Superior climbing action - Lithium-ion battery