Specification:
Model: F-17
Color: Black
Number of keys: 6
Tracking system: Optics
Frequency: 2405mhz-2476mhz
Effective distance: 10m
Working voltage / current: 3V 4mA
Key life: 3 million times
Roller life: 1.2 million revolutions
Resolution: 1000-1600-2400dpi
Rate of return: 250Hz
Battery type: 1 * AA battery (not included)
Product size: 134 * 96 * 83mm
Box size: 123 * 93 * 93mm
Product weight: 100 g
Gross weight: 165 g

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-3cm measuring deviation due to manual measurement.