Kenwood FreeTalk XL TK-3101 (15 Channels) 2-Way Radio "high pitch radio noise" Questions

Having two TK3101 I'm encountouring a weird isssue whenever I press the PTT the radio emits a very high pitch noise... there are no channels in it!! lay it on the software and it works

...High pitch squeals I'm getting an intermittent squeal/squawking noise on my radio. Changing channels makes no difference. Any suggestions? other than check your wiring for rubbed spots or loose ...

Handheld UHF Uniden UH-052XR.When you push the transmit in it has a high pitch noise. This happens on all channels. just speak no hum