4 ms·
Sonic pest repellants? Supposed to be ultrasonic, but some work around 13 kHz, I've heard... (Oh, and I have a roll of black PVC tape in my travel bag for tapin
by tommiegannert 2y ago
Sonic pest repellants? Supposed to be ultrasonic, but some work around 13 kHz, I've heard... (Oh, and I have a roll of black PVC tape in my travel bag for taping over hotel air condition LEDs. I don't understand why they have to make them light up the entire room.)