Features: This sensorings is baseds on the ADNS3080 mouse sensorings which is good for opticals flows. High resolution: 30x 30pixel frames meaning it can see features that lesser mouse cannot. Fast speed: 2000 to 6400 frames per second update rate which contributes to better low light performances than other mouse sensorings. SPI interfaces meaning it can be interfaced to many controllers and co-exist with other sensorings. Intended to interfaces with 5V microcontroller. Standard 12x0.5 lens mount meaning you can replace the lense easily. Specifications: Materials: Size:4x2.50cm/1.57x0.98inch Package Includes: 1Set ADNS-3080 opticals flows sensorings note: Please allow 1-2cm error due to manual measurement. make sure you do not mind before you bid. Due to the differences between different monitors, the picture may not reflect the actual color the item. Thank you!