Features:
100% brand new and high quality. All our keyfobs are 100% tested, we promise every piece shipped from us will work well!
Works excellent, waterproof,epoxy resin encapsulation, ultrasonic welding, ensure product waterproof anti-throw.
The pure copper wire coil, frequency stability, ensure that card read distance,in bad use environment also can work normally.
Rewritable,Can be used in 125KHz RFID card Copier/Duplicator (can NOT support HID copier).
Compatible with almost all 125KHz Door Security / Access Control / Entrance Guard System and RFID reader (HID NOT supported)
Each piece comes with key ring included, easy to carry.
Available in 10 colors, they are Red, Blue, Yellow, Orange, Gray, Dark Green, Light Green, Pink, Black and White.
You can specify the color for each piece of keyfobs you wanted, just leave a message to let us know your requirement, we will send as you required. Otherwise, we shall arrange random delivery.

Specifications:
Chips: EM4305
Frequency: 125KHz
512 bit EEPROM organized in 16 words of 32 bit
32 bit unique identifier (UID)
32 bit Password read and write protection
ISO 11784 / 11785 Standard Compliant
EEPROM Write Cycles: > 10000 cycles
EEPROM Data Retention: > 10 years
Operating Distance: 0-10cm
Operating Temperature : -20° - +50°
Material: ABS
Size: 1.4 * 1.1 * 0.2 in. (35 * 28 * 6 mm)
Weight: 0.14 oz (4 g)/pcs

Package include:
10Pcs EM4305 125khz Tags (Color Random)