"Not only does Stratus 2S deliver subscription-free weather, dual-band ADS-B traffic and WAAS GPS information to your ForeFlight Mobile app, but the built-in AHRS technology also drives a very responsive pitch and bank instrument in the center of the Synthetic Vision view on ForeFlight. Synthetic Vision provides luminous terrain, night sky view and a brilliant obstacle awareness system, making AHRS an excellent backup for emergency situations.

Stratus 2S is wireless with an 8-hour battery life. It comes equipped with Stratus Replay (a feature that enables the device to store weather information even when your iPad is asleep), a pressure altitude sensor, and a built-in flight data recorder (for replaying your flights using Google Earth or CloudAhoy)."