[Advantages in comparsion with traditional scuba mask (non full face)]
Traditional Ones - Users have to use mouthpiece, not comfortable, not convenient.After a long time, the mouth will feel stiff and aching. Some people will feel dizzy, not safe enough.
RKD Innovative Design - Easier to use, more comfortable and safe. Users can breath freely and able to make a long time diving
[Advantages in comparsion with traditional scuba mask (full face)]
Traditional Ones - These full face diving masks are complex and professional, the prices are very expensive, more suitable for special and professional use.
RKD Innovative Design - Simple and easy to use, it can use for entertainment, teaching / training and even professional scene.