The NTG4+ is based on the NTG2 but with a completely new microphone capsule, low inherent noise, high sensitivity and easy-to-use digital switches for attenuation, filter and frequency boost. In addition, the NTG4+ is the first microphone with a built-in battery for over 150 hours of use and is charged via USB.o Broadcast sound quality o Newly developed microphone capsule o Low intrinsic noise o Built-in rechargeable lithium battery with over 150 hours of use o Fully charged in less than two hours via MicroUSB (USB cable included) o Robust metal construction o Easy-to-handle digital switching o High-frequency boost o High-pass filter (Flat/75Hz) o PAD ( -10dB)o Ten-year extended warranty with online registration