[Product Size]: 8.5x3.5x3.5cm 

[Weight]: about: 0.22kg 

 

[Introduction] Related: 

 

"Chan"， meaning there is reelected， a cicada on bamboo volts of static， not pours. Placed in the family home so that children can improve performance; especially children lazy， put a desk or portable， can make cheer， strenuous efforts. Students wear， is a portable instruments used to help learning.