Learn about Bats

Echo Meter Touch 2 can identify the most likely species of bats in your area.

There are thousands of bat species in the world, each with its own slightly different type of echolocation call. Every time you watch for a bat, Echo Meter Touch listens for it and processes the sound using highly complex, proprietary algorithms called “classifiers”. In a split second, Echo Meter Touch shows you the most likely species of bat flying overhead. You can click on each species to learn more. Currently, Echo Meter Touch can identify bat species from North America, the Neotropics, the U.K., Europe and South Africa. Full List

Hear Ultrasonic Bat Calls

Discover the world of ultrasonic sound.

Bat echolocation calls are ultrasonic – out of the range of human hearing. The Echo Meter Touch combines a special microphone with sophisticated circuitry and software to transform ultrasonic bats calls into audio that you can hear. Echo Meter Touch displays the bat calls on an interactive, scientific-level spectrogram. You can pause the audio, zoom in on each recording, and listen to it in more detail using one of three professional-level listening modes: Real-Time Expansion, heterodyne, and post-recording time expansion.


  • Affordably priced for citizen science
  • Listen to and record bat vocalizations in real-time
  • Identifies the most likely species of bats via the free Echo Meter Touch app for iOS or Android*
  • View bat echolocations in real-time on a color spectrogram
  • Shows recording locations and path on a zoomable map
  • Share your discoveries easily via text and email

*Auto ID classifiers are currently available for species in North America, U.K., Europe, Neotropics and South Africa.


Sample Rate: 256k samples per-second at 16 bits.
Maximum Recording Frequency: 128 kHz
Gain Settings: 1
Custom User Settings:
  • Audio Division Ratio for RTE, HET and TE
  • Real-Time ID (ON/OFF)
  • Nightly Sessions Mode (ON/OFF)
  • Real-Time ID (ON/OFF)
  • Auto-ID Sensitivity
  • Save Noise Files (ON/OFF)
  • Max Trigger Length
  • Trigger Window
  • Trigger Sensitivity
  • Trigger Minimum Frequency

Enclosure: Rugged Polycarbonate housing with an integrated acoustical horn

Dimensions And Weight:

  • Width: 1.9″ (48 mm)
  • Length: 1.4″ (35 mm)
  • Length with connector: 1.7″ (43 mm)
  • Height Android: .46″ – .71″ (11.7 mm – 18.0 mm)
  • Height iOS: .39″-.62″ (9.9 mm – 15.8 mm)
Echo Meter Touch App: The Echo Meter Touch App is free and available from the Apple App Store or Google Play.
Listening Modes: RTE, heterodyne, and post-recording time expansion.
Recording Format: Full-spectrum WAV.
Species Auto-ID Regions: North America, the Neotropics, the U.K. and Europe, and South Africa.


Currently, we have bat species classifiers for North America, the Neotropics, the U.K. and Europe and South Africa. We’re continually developing new classifiers as well as improving existing ones.

» Download Kaleidoscope Pro Classifier Performance Excel Chart for 5.1.0 version

Note: Classifiers in the Echo Meter Touch app may lag the Kaleidoscope classifiers by several weeks. Watch for updates to the app to get the latest classifiers.

North America

Antrozous pallidus (Pallid), Corynorhinus townsendii (Townsend’s big-eared bat), Eptesicus fuscus (Big brown), Euderma maculatum (Spotted), Eumops floridanus (Bonneted), Eumops perotis (Western mastiff), Eumops underwoodi (Underwood’s bonneted), Lasionycteris noctivagans (Silver-haired), Lasiurus blossevilli (Western red), Lasiurus borealis (Eastern red), Lasiurus cinereus (Hoary), Lasiurus ega (Southern yellow), Lasiurus intermedius (Northern yellow), Lasiurus seminolus (Seminole bat), Lasiurus xanthinus (Western yellow), Macrotus californicus (California leaf-nosed), Molossus molossus (Pallas’s mastiff), Mormoops megalophylla (Ghost faced), Myotis austroriparius (Southeastern myotis), Myotis californicus (California myotis), Myotis ciliolabrum (Western Small-footed), Myotis evotis (Long-eared myotis), Myotis grisescens (Gray), Myotis leibii (Small-footed), Myotis lucifugus (Little brown), Myotis occultus (Arizona myotis), Myotis septentrionalis (Northern long-eared myotis), Myotis sodalis (Indiana), Myotis thysanodes (Fringed myotis), Myotis velifer (Cave myotis), Myotis volans (Long-legged myotis), Myotis yumanensis (Yuma myotis), Nycticeius humeralis (Evening), Nyctinomops femorosaccus (Pocketed free-tailed), Nyctinomops macrotis (Big free-tailed), Parastrellus hesperus (Western pipistrelle), Perimyotis subflavus (Tricolored), Tadarida brasiliensis (Mexican free-tailed)

UK and Europe

Barbastella barbastellus (Western barbastelle)*, Eptesicus isabellinus (Meridional serotine), Eptesicus isabellinus (Meridional serotine), Eptesicus nilssonii (Northern), Eptesicus serotinus (Serotine)*, Hypsugo savii (Savi’s pipistrelle), Miniopterus schreibersii (Common bent-wing), Miniopterus schreibersii (Common bent-wing), Myotis alcathoe (Alcathoe’s), Myotis bechsteinii (Bechstein’s)*, Myotis brandtii (Brandt’s)*, Myotis capaccinii (Long-fingered), Myotis capaccinii (Long-fingered), Myotis dasycneme (Pond), Myotis daubentonii (Daubenton’s)*, Myotis emarginatus (Geoffroy’s), Myotis escalerai (Escalera’s), Myotis escalerai (Escalera’s), Myotis myotis (Greater mouse-eared), Myotis mystacinus (Whiskered), Myotis nattereri (Natterer’s)*, Nyctalus lasiopterus (Greater noctule), Nyctalus leisleri (Lesser noctule)*, Nyctalus noctula (Common noctule)*, Pipistrellus kuhlii (Kuhl’s pipistrelle), Pipistrellus nathusii (Nathusius’s pipistrelle)*, Pipistrellus pipistrellus (Common pipistrelle)*, Pipistrellus pygmaeus (Soprano pipistrelle)*, Plecotus auritus (Brown long eared)*, Plecotus austriacus (Grey long-eared), Plecotus austriacus (Grey long-eared), Rhinolophus euryale (Mediterranean horseshoe), Rhinolophus ferrumequinum (Greater horseshoe)*, Rhinolophus hipposideros (Lesser horseshoe)*, Tadarida teniotis (European free-tailed), Tadarida teniotis (European free-tailed), Vespertilio murinus (Particoloured)


Antrozous pallidus (Pallid), Balantiopteryx io (Thomas’s sac-winged), Balantiopteryx plicata (Gray sac-winged), Balantiopteryx plicata (Gray sac-winged), Bauerus dubiaquercus (Van Gelder’s), Centronycteris centralis (Thomas’s shaggy), Centronycteris maximiliani (Shaggy), Corynorhinus townsendii (Townsend’s big-eared), Cynomops mexicanus (Mexican dog-faced), Diclidurus albus (Northern ghost), Eptesicus brasiliensis (Brazilian brown), Eptesicus furinalis (Argentine brown), Eptesicus fuscus (Big brown), Euderma maculatum (Spotted), Eumops glaucinus (Eumops floridanus), Eumops perotis (Western Mastiff), Eumops underwoodi (Underwood’s bonneted), Lasionycteris noctivagans (Silver haired), Lasionycteris noctivagans (Silver-haired), Lasiurus blossevillii (Desert red), Lasiurus borealis (Eastern red), Lasiurus cinereus (Hoary), Lasiurus ega (Southern yellow), Lasiurus insularis (Cuban Yellow), Lasiurus intermedius (Northern yellow), Lasiurus seminolus (Seminole), Lasiurus xanthinus (Western yellow), Lasiurus xanthinus (Western yellow), Macrotus californicus (California leaf-nosed), Macrotus californicus (California leaf-nosed), Molossus molossus (Velvety free-tailed), Molossus rufus (Black mastiff), Molossus sinaloae (Sinaloan mastiff), Myotis occultus (Arizona myotis), Myotis velifer (Cave myotis), Nyctinomops femorosaccus (Pocketed free-tail), Nyctinomops macrotis (Big free-tailed)

South Africa

Chaerophon pumilus (Little free-tailed), Eptesicus hottentotus (Long-tailed house), Laephotis botswanae (Botswanan long-eared), Miniopterus natalensis (Natal long-fingered), Myotis bocagei (Rufous mouse-eared), Neoromicia capensis (Cape serotine), Pipistrellus hesperidus (Dusky pipistrelle), Rhinolophus blasii (Blasius’s horseshoe), Rhinolophus capensis (Cape horseshoe), Rhinolophus clivosis (Geoffroy’s horseshoe), Rhinolophus denti (Dent’s horseshoe), Rhinolophus fumigatus (Rüppell’s horseshoe), Rhinolophus hildebrandtii (Hildebrandt’s horseshoe), Rhinolophus landeri (Lander’s horseshoe), Rhinolophus simulator (Bushveld horseshoe), Rhinolophus smithersi (Smithers’s horseshoe), Rhinolophus swinnyi (Swinny’s horseshoe), Sauromys petrophilus (Roberts’s flat-headed ), Scotophilus dinganii (African yellow), Scotophilus Nigrita (Schreber’s yellow), Tadarida aegyptiaca (Egyptian free-tailed)

NOTE: Auto ID is intended for use in analyzing recordings of single bats in free flight, low clutter environments. Recordings of roost emergence, multiple bats, captive bats, bats in high-clutter environments or bat social calls are not suitable for Auto ID and results may not be accurate.

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Echo Meter Touch 2 PRO is an innovative combination of hardware and software that lets you listen to, record and identify bats in real-time – on your Android or Apple iOS device.

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