Have you ever wandered what life sounds like underwater? The NHBS Hydrophone Kit provides you with everything you need to access the amazing world of underwater sound. Either record the sound with the Tascam DR-05X digital recorder or listen directly using the speaker on the DR-05X or a pair of headphones. Perfect for listening to life in rock pools, ponds (e.g. lesser waterboatmen), the sound of a stream gurgling, or even the open ocean (e.g. to listen to dolphins).