Garmin GT21-TM Transom Mount Transducer, Traditional 600W,CHIRP 500W, 455kHz 18 Amp Hour making it nearly impossible for

making it nearly impossible for someone to eavesdrop

5 Programmable Circuit-Board Relays

5 Band Graphic Equalizer W/ Subwoofer Control

300 mAh battery is removable for easy charging

Garmin GT21-TM Transom Mount Transducer, Traditional 600W,CHIRP 500W, 455kHz 18 Amp Hour making it nearly impossible forGT21 TM Transom Mount Transducer, Traditional 600W, 50 200kHz, ClearV CHIRP 500W, 260 & 455kHz Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearV scanning sonar. This transom mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat. The CHIRP ClearV element has a power rating of 500W and operating frequencies of 260 455