Wireless Intercom System Full-Duplex (FDX), The beltpacks can be grouped into up to three groups, Simultaneous group calls possible for up to 16 people in three groups with two cascaded sets, Transmission frequency: 1.9 GHz, Bandwidth: 1728 MHz
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Hollyland Solidcom M1 Long Range Wireless Intercom-Hollyland
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Hollyland Solidcom M1-4B – Thomann Elláda
Hollyland Solidcom M1 Long Range Wireless Intercom-Hollyland
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Hollyland Solidcom M1 Long Range Wireless Intercom-Hollyland