Breathing Resistance Training Mask for Sports and Workout "New Arrival" 6" IPS touchscreen 1366 x

6" IPS touchscreen 1366 x 768 ( HD )

5mm audio output jack

Brush your teeth for 1-2 minutes

It measures 11

They will swat

Breathing Resistance Training Mask for Sports and Workout "New Arrival" 6" IPS touchscreen 1366 xWith many levels of resistance, this training mask is perfect for those working out and trying to get their gains! Great for all sports such as exercising, running, jogging, weight lifting, and all sports. Features: Improve lung capacity Made from high quality ultra durable material Helps burn more calories during workout, exercise, and jogging. Suitable for jogging, exercising, running, weight lifting, and all sports. Decrease Workout Time: Less