i have a set of wireless for my vaquero. had to put a short wire volume control between the control box and the transmitter because i was getting a slight echo (feedback) when i went over a target. like beep-dunk, beep-dunk. i adjust the volume i hear with the control on the headset. with no volume control on the detector, had to cut it down just a bit going into the transmitter. they work great when i use them. i mostly do not though.