The Makro Multi Kruzer operates at multiple frequencies (5kHz, 14kHz, and 19kHz). The Multi Kruzer will bring hunted out sites back to life by offering the best performance and depth combined with its robust and waterproof design. Are you a beach hunter? We did not forget about you, either! The Multi Kruzer features a new advanced beach mode that provides a very stable performance on the wet salt beach and even underwater.