freeway series atw-r220 diversity system . frequency 171.905 mhz. works great.. Audio-Technica's Freeway 220 Series Wireless System provides flawless performance for artists and presenters in a variety of settings. The heart of this rugged True Diversity VHF system is the ATW-R220 receiver. It houses two independent receiver sections in a single unit. True Diversity operation selects the better signal from the two sections, reducing dropouts and interference while increasing system reliability. Other professional features include balanced and unbalanced outputs, ground lift, adjustable squelch, and two detachable antennas.

　　Product MPN

　　MPN: ATW-222

　　Key Features

　　Types Quantity: Single Microphone Type

　　Type: Dynamic

　　Connectivity: Wireless

　　Technical Features

　　Polarity: Unidirectional

　　Frequency Response: 80 - 13000 Hz

　　Plug

　　Plug Type: 6.35 mm · Mini XLR

　　Wireless Features

　　Wireless Technology: RF

　　Battery Life: Up to 20 Hours

　　Max. Transmit Range: 300 ft. / 90 m

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　　Location: littleton