Product Review
1.EM4100 Chip
2.125khz
3.Black wristbands with white square
4.silicone material
5.read only,can't rewritable.
6.adjustable size
1.EM4100 Chip
2.125khz
3.Black wristbands with white square
4.silicone material
5.read only,can't rewritable.
6.adjustable size