Velleman k8087 telephone ringer with buzzer and led electronics kit
Velleman telephone ringer kit velleman k8087 if you have difficulty hearing the phone ring then fit the velleman telephone ringer kit the telephone ringer has a buzzer which sounds and a powerful led which flashes every time the phone rings great for use in noisy environments like factories and workshops or by the hearing impaired to replace the existing ringer velleman k8087 telephone ringer with buzzer and led electronics kit