FLITELite® GEN II - BOSE A20 - Dual Sensor Technology, NVIS Compatible FLITELite®. Improved dual sensor controls and sealed system give the pilot ultimate control and reliability. Lighter, brighter, and fully controllable through a range of brightness. 60 minute auto-off, light setting memory, 30% smaller than the original FLITELite® GEN I, with New Bose Control Adapter. BOSE ships a variety of A20 microphones including this model, low impedance, and the original. No need to worry with FLITELite.com adapters, if you select the incorrect adapter, we will make sure you get the correct model. Customers can also send a picture of their microphone to us prior to purchase to make sure they have selected the correct product. Generally, when shipping for the A20, we include possible adapters.