From the RØDE YouTube Channel:
The NTG4 and NTG4+ are two new directional condenser (shotgun) microphones from RØDE, combining premium performance with features that improve audio fidelity and usability.
The NTG4+ is the first shotgun microphone to feature an inbuilt lithium battery. Providing over 150 hours of operation, the battery can be charged by any USB power source in around two hours using the supplied MicroUSB cable.
B&H has the RØDE NTG4 and NTG4+ Shotgun Microphones available for preorder.