The Airofit PRO 2.0 Breathing trainer is a device that allows respiratory muscle training through adjustable flow resistance. Airofit has Bluetooth connectivity to a dedicated app that allows users to receive live data feedback on their breathing pressures and lung volumes. The app will collect and track the data then personally customize breathing training from the collection of 17 individual sessions on the app. Training can be performed under relaxed conditions. The user only needs to train 5-10 minutes a day for 4 weeks to see significant benefit to athletic performance, specific health conditions and general well-being.