Wildlife Acoustics Echo Meter Touch (Updated: v1.0.5) - Arbtech
Echo Meter Touch Bat Detector - Apps on Google Play
Echo Meter Touch 2®: Ultrasonic Bat Detector/Recorder/Analyzer
Higdon Wildlife Consulting - I bought an Echo Meter Touch 2 PRO a couple weeks ago, and got the USB-C adapter I need for my phone today. It's an ultrasonic bat detector
Bat Detector Reviews: Review: The Newest Echo Meter Touch 2 (Non-Pro Version) From Wildlife Acoustics
Echo Meter Touch 2 #4: Recording and Auto-ID | Record Bat Sounds - YouTube
Turn Your Phone into a Bat Detector with the Echo Meter Touch 2 | Travel For Wildlife