This replacement key fob case is designed for 2006-2013 Chevy Impala, Monte Carlo, Cadillac DTS, and Buick Lucerne vehicles. Constructed from durable ABS material with textured button pads, the case provides a secure grip and responsive operation. The five-button layout includes functions for remote start, door lock and unlock, and vehicle locator with a 315MHz frequency and approximately 40-meter range. Each fob measures 1.57 by 2.25 by 0.51 inches and includes a battery. The reinforced hanging loop helps prevent key loss while the sturdy construction protects against daily wear. This set includes two complete key fob cases compatible with FCC IDs OUC60270 and OUC60221. Professional programming and key blade cutting by a dealer or locksmith is required to sync the remote with your vehicle. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.