* The contact-less Key Tag is available with different Ics in the housing, such as EM, MF, TEMIC, ATMEL, ST, TK, * Material used is ABS * Available with yellow, semi-transparent blue, semi-transparent red, (other colors available if 4000pcs above) * Silk-screen printability with logo or numbering. * Water and dust proof, anti-shock. * Operating temperature: -10~+50°C.