Breathing training recorder-with the Ocarina, it provides visual breathing training, following the displayed pressure waveform, after inhaling full through the nose, holding the straw of the Ocarina in the mouth, and exhaling with consistent force!

Breath training recorder provides a complete training record, you can review your training results, you can also share with friends and relatives, and encourage each other!

Provide user settings, you can set customized training goals based on your personal information!