Ultrasonic Bird Speaker Three Functions Delfiero S.r.l.
USB Computer Speaker, Laptop Speaker with Stereo Sound & Enhanced Bass, Portable Mini Sound Bar for Windows PCs, Desktop Computer and Laptops - Walmart.com
100 -200m Remote Control Hunting Bird Sound Mp3 Player 50w Speaker Portable Bird Caller With Timer - Hunting Decoy - AliExpress
Ultrasonic Bird Repeller | Ultrason-X 4-speaker System | Bird-X