How much does this cost to the nearest dollar?

HiLetgo RGB Light Color Sensor Colour Recognition Module RGB Color Sensor with IR Filter and White LED for Arduino
RGB Color Light Sensor Colour Recognition Module For Arduino Specification 1. Red, Green, Blue (RGB), and White Light Sensing with IR Blocking Filter 2. Programmable Analog Gain and Integration Time. 3. 1 Dynamic Range 4. Very High Sensitivity? Ideally Suited for Operation Behind Dark Glass 5. Maskable Interrupt 6. Programmable Upper and Lower Thresholds with Persistence Filter 7. Power Management 8. Low Power 2.5-uA Sleep State 9. 65-uA Wait State with Programmable Wait State Time from 2.4 ms to > 7 Seconds 10. I2C Fast Mode Compatible Interface 

Price is $7.00
Price: $6.99