* USB port compatible
* Windows and Mac Compatible
* No Batteries Required
* Easy to-use-software with step-by-step instructions
* 2 year limited warranty for USB flash memory card
PetSafe Micro Id for just $7.99 + $5.99 ship ($1.00 additonal ship for each extra)
These are on Graveyardmall.com Deal of the day.
they are on Amazon for $29.99 - $39.99 depending on the size
Common question: Are these waterproof?
Yes, the 128mb drive is enclosed and water tight.
PetSafe® Micro I.D.™ Rescue Collar, is a complete pet care and lost pet prevention system.
The PetSafe Micro I.D. Rescue Collar isn’t just a collar, it is the ultimate pet protection system with convenient features even today’s best micro-chipping system can’t offer. Never before has a little collar offered a pet owner so many benefits.
The 128mb drive is enclosed and water tight.
read more here
(was not sure of original price , so took amazon.com sale price as original for comparison purposes)