... 3.Popular in hospital,baby tracking,prison,etc. This active wristband is popular used in hospital,baby tracking,prison,etc ... have whole system,including reader,activator,tag.wristband tag operates in 2.45 GHz band, active working mode, nice design is suitable ... RatingIP68Shock Resistance10~2000Hz, 20mm/15g, Triaxialwristband tag operates in 2.45 GHz band, active working mode, nice design is suitable for ...