Garmin Voice Studio Lets You Create Custom Voices for Your GPS Device

If you've got one of these, you can make your own custom turn-by-turn voice commands:

The following devices are compatible with Garmin Voice Studio:
aera^™ series
GPSMAP^® 620 & 640
nüvi^® 200-series
nüvi 205-series
nüvi 500-series
nüvi 700-series
nüvi 705-series
nüvi 800-series
nüvi 1200-series
nüvi 1300-series
nüvi 1400-series
nüvi 1600-series
nüvi 5000
zūmo^® 660