New B3V1A Lithium Battery 2-Pk
for MS4 and MS5 Electronic Collar
Designed specifically to prevent damage if accidentally installed incorrectly, This battery
typically powers a collar for 3 months, and has a shelf life of years.
NOTE: This battery
is required for all of the new High Tech Pet MS-4 Digital Microsonic Collars. Please ensure that you order ONLY the B3V1A battery for your MS4 collar.