a. adopted high-strength engineering ABS plastic
b. with special security coil
c. strong and durable
d. high sensitivity
e. wide application such as clothe, shoe and hat, sports and bags.
Details
frequency:8.2MHZ
size: big square(5*6cm).small square(4*4cm)
color: black, grey white
core: common/strong
pakage:1000pcs/case