Keyword Analysis & Research: when was the wireless microphone invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the wireless microphone invented	0.76	0.3	5874	1	41
when	0.24	1	3781	99	4
was	0.92	0.9	3811	99	3
the	0.06	0.1	8892	70	3
wireless	0.03	0.8	200	62	8
microphone	0.69	0.3	8539	19	10
invented	1.98	0.3	8858	62	8

Keyword	CPC	PCC	Volume	Score
when was the wireless microphone invented	1.95	0.3	7173	4