It's easy to take along your compatible STRIKER fishfinder featuring GPS or echoMAP and echoMAP CHIRP combos with this portable kit. It protects and carries your fishfinder and includes a sealed, rechargeable battery with smart charger, built-in transducer cable management and storage and suction cup transducer mount and float. When using the portable kit in a kayak, the optional kayak in-hull transducer mount secures your Garmin dual beam transducer (77/200kHz), CHIRP (77/200kHz) or GT20-TM transducer (77/200kHz/ClearVu) to the kayak. This mount can withstand continuous water submersion without releasing, all while protecting your transducer within the kayak.