This mask has 4 modes for controlling the flash: steady light, slow flash, fast flash, and off. The light is uniform, soft, does not flicker, and doesn't produce tension or fatigue in the eyes. Price drops from $59.99 to $6.99. Shipping adds $4.99.
Groupon deal prices are subject to change, therefore this deal may expire at any time. Please refer to original post time to see when this deal was posted.