Tiffen 58mm FL-D Fluorescent Filter sound tuning fork helps improve attention

tuning fork helps improve attention and cognitive function

included in the box is adapter plates for both

Unique Design Only connect what you need

5V AAA Batteries(Not Included) Content: 1X Remote Control(Batteries and User Manual Not Included)

Tiffen 58mm FL-D Fluorescent Filter sound tuning fork helps improve attentionTiffen 58mm FL D Fluorescent Filter Product description Provides correct color, removing harsh green cast caused by fluorescent bulbs. Use FL D with daylight film. Use FL D filter with daylight film. Essential in any environment where the ambient light source is fluorescent. Product Features True to life color rendition Removes harsh green cast caused by fluorescent lights 58mm diameter