If the shipping method you choose is SpeedPAK, this product does not contain a battery.

Heli TL90 Electronic Digital Pitch Gauge RC Helicopter Digital Display 250-800mm
Features:
Model:  TL90 

Color:   Black   

Material:  Plastic   

Compatible Models:  RC Helicopter   

Application:  measure the rotor blade pitch value   

Working voltage:  3.0V/DC (2 x CR2032, included)   

Max. Current consumption:   3Ma   

Resolution rate:  0.1 degree   

Working temperature:   0 centigrade-40 centigrade   

Screen size:  3.1 x 1.6cm   

Size:   10.8 x 5.2 x 1.5cm   

Weight:  29.7g

The new Digital Pitch Gauge from LT90 offers simplicity, high accuracy and ultra fast pitch angle measurement.
The pitch gauge is powered by two CR2032 button cells and allows blades from 250 to 800 mm.
Package include: 

1*TL90 Electronic Digital Pitch Gauge

pls kindly note the TL90 will have 2 small battery inside it if shipping to USA. 

Other area outside USA won't have the inner battery, because the shipping restrict ship battery.