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The H2d hydrophone can be connected to audio recorders and computers via the 3.5 mm input for recording frogs and fish, among other fauna.

The H2d-XLR hydrophone can be connected to audio recorders and computers via the mic preamp for recording frogs and fish, among other fauna.

Hydrophone with 4.3Hz-110kHz frequency range designed for use with microphone preamplifiers that provide phantom power. The omnidirectional microphone can record at depths of up to 200 meters. Integrated signal conditioning provides maximum sensitivity.

Outperforms most contact mics at very low frequencies.

Designed to work with all Frontier Labs recorders. 9m cable extension with robust, low self-noise transducer assembly and includes a low noise internal impedance buffer amp.

Converts plug-in-powered hydrophones to balanced XLR output.