Bats have the advantage of emitting very regular cries to identify in flight, thus inversely to locate. To do, several microphones pick up the sounds and transmit them to synchronous recorders.
Popo kuwa na faida ya kutotoa moshi mara kwa mara kilio sana kutambua katika ndege, hivyo inversely na Machapisho. Kufanya, vipaza sauti kadhaa kuchukua sauti na kusambaza yao kwa recorders synchronous.