This 2.4 ghz Wireless Transmitter connects to our high end PV series DVR line. When used in combination with the 2.4 hz wireless converter, this high grade law enforcement quality 2.4 ghz transmitter is ideal for wireless video operations! The battery life is 120 minutes, with a 100 meter range. This Wireless Transmitter is surrounded by a brilliant looking mag-aluminum housing! (Note: TBR-1255CK 1.2GHZ Transmitter is also available by special order, 2-3 weeks).