A:AnswerBatteries are not required. The unit is charged just like your cell phone. Just plug it in using your USB port or your cell phone charger. There is a way to check the charge level on the unit using the button on the side, it is described in the owners manual. Hope this helps.
A:AnswerWhen I purchased it for $99.95 installation was included. The fob has an AUX button which they programmed for the trunk release. This is a great item that confirms the car is running and has a really long range. Installation is very complicated and Best Buy did a first-rate professional job. Couldn't be happier.
