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Battery NOT included. This is just the monitor unit
Compatibly pairs with all versions of DXR-8 Camera Unit
Round-pin charging jack for improved reliability and efficiency.Channel bandwidth:3.375 MHz
Not compatible with older versions (micro-USB) DXR-8 Monitor Unit power adapters
110v-220v compatible power adapter included

Does NOT include battery. Compatible with all versions of DXR-8 Camera Unit. 110-220V compatible. Not compatible with DXR-8 PRO.