VARTA's handcrafted model contact hydrophone, based on a piezoelectric sensor, is a passive microphone. A gold-plated Roxtone brand jack plug and a long 5-meter cable made of oxygen-free OFC copper, ensure very good quality signal transmission. A useful device for field recording, ambient or experimental music. Great possibility of solutions for music production.
Finally you can throw the hydrophone in the unreachable places! Jack cable is High quality 6.3mm jack plug. Hydrophone size - about 6 cm.
 
Working range -5°C - 40 °C
 
The hydrophone works very well with audio recorders, audio mixers and other devices that allow the connection of an external microphone.
 
Hydrophone does not work when connected to a smartphone