You're always on track with the Prima GP-41P GPS kit! With an 8 hour rechargable battery you're both on the road and on foot. The Window Mounting Kit makes it easy to setup in your vehicle and provides simple hands-free voice navigation on the road. When you're at home you can load the GP-41p up with your favourite MP3s or family photos making it one of the most capable GPS systems available. The GP-41P kit includes detailed US and Canadian maps along with an 512MB SD to make updating those maps a snap