Circular Dispersion Vent
The circular dispersion vent keeps the noise as low as 18dB (A) and meanwhile protects your bed partner from being disturbed.
All Size Kit
Included are three cushion sizes, Small, Medium and Large in the package.
Modular Main Frame
The main frame is compatible with all pillow sizes.
The adjustable headgear is fit for most head sizes. Wider range, more inclusiveness.