Features:
- S50 (Compatible) chips
- Size:3.5 x 2.8 x 0.4cm
- Material: ABS
- Operation frequency: 13.56Mhz
- Detecting distance: 3-5cm
- Compatible with all Door Entry system
- Easy to carry
- Water resistant
- It applies to access control, hotel locks, staff attendance and school campus access and payment control, identification and security systems, parking lot entry and payment, social security management, transportation payment, municipal and ancillary service payment.