Performance: The tire pressure monitoring system has a high-performance battery, is made to last up to 8 years of normal use. The chip of the tire sensor is made by advanced technology, no worry in receiving data.
Package&Guarantee: 4 sets of tire pressure monitoring system sensors included, also there are 4 extra caps as gifts. The tire sensor (TPMS) obtained FCC certification, this tire sensor has been tested before shipping, it can be returned for free within 30 days if you have any questions.