The Sony FV120 handheld dynamic microphone is a compact and easy to carry design. It includes the UniMatch plug for use with karaoke player, cassette recorder or CD players. Frequency response is 60 Hz – 12 kHz. The FV120 is 2.1″ x 8.3″ and weighs only 4.9 oz. including the 9’8″ microphone cord. The FV120 also comes standard with a built-in on/off switch.