The integrated design is robust and reliable. Press the switch with your hand and make a loud clattering sound. Whistling with the mouth to produce high frequency sounds has excellent penetration. This ensures that it can be used in different environments.
Note :
1.Because of the photography and the monitor reason, if cannot accept the chromatic aberration ,please discretely to purchase, thank the cooperation
2.This is Aisan size, Highly elastic, Please choose your size according to the size chart.
3.Please allow 2-3cm difference due to manual measurement.