Caldwell Precision Chrono Kit, Chronograph, BlueTooth Enabled, Extra Wide Sun Screen, Green, Includes 2 Sun Screens, Carry Case, Tripod, Light Kit 4001146
Specifications:

Type
Function	Measures Bullet Velocity
Channels
Range
Battery	9V
Screen Type	LCD Display
Proofs
Backlight
Color
Privacy Codes
Data Cards
Compatible With	Bluetooth