ChoiceMMed Electronic Smart Lung Trainer to improve Lung Capacity

Model:MD8000B Display:TN Dimension:161.2mm*61mm*117mm Weight:170g ChoiceMMed LungBoost Features ChoiceMMed Respiratory Trainer strengthens your respiratory muscles with adjustable load training to help you breathe easier, feel better and improve athletic performance and daily life quality. Affordable & Easy to Use Technology for at Home Patent Pending-An Innovative Technology for Spirometer Strengthen Inhaling & Exhaling Muscles Dual Purpose Training Modes Multiple Resistance Levels for All Sorts of Intensity Visual Feedback & Data History Increased Exercise Capacity and Endurance Reduction in Shortness of Breath, Cough, and Wheezing