Product Details: tefiti 
Screen size: 1.28 inches
Appearance size: diameter 4.4cm thickness 1.1cm
Material: Zinc alloy+ABS/PC
Battery capacity: 200MAH
Wearing method: wristband
Operation mode: touch + button
Interface: USB 3.0
Wireless distance: 5m (inclusive)-10m (inclusive)
Color: blue, orange, red, gray

Package Contents:
Bracelet X1 Color Box X1 Manual X1