🔱Portable,
🔱Whistle shape design,
🔱Easy to use,

(commodity specifications)
Portable design with sling and easy to carry.
The data transmission speed is as high as 480 mb.
Supporting the operating system of win98/me/2000/xp/vista/7/8,
For mac os 9.X applicable to linux 2.4.
Size please look at the picture