Feature: Programmable words, DIY for image or message Low-noise and quick release The LED lights will help to create long exposure effects. With rechargeable battery, charges via USB cable. Different for image or text will help to distinguish the for head or the tail of drone when flying. The display for image or text will be a special method to give your friend or family a surprise for birthday or other speical moments, or make an advertisement. Specification: Main Material: nylon+glassfiber LED quantity: 12 pcs Battery:Lithium polymer battery Input voltage: 3.7V Battery capacity:30mAh Charging time: About 60 minutes Operating temperature: -10-40 Cycle life: >500 times Lamp color: red Compatible models:For -DJI for Mavic 2 Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package List: 1X CCW FLASH WORD PROPELLER 1X CW FLASH WORD PROPELLER 2X CCW PROPELLER SENOR KIT 2X CW PROPELLER SENOR KIT 1X CABLE