Navigation or trip display, all at a glance. Easy and safe installation via anti-slip Velcro fasteners. External batteries (Power Bank) can be safely carried in the bag. The charging cable is laid inside only. External protected access for headphones and charging cable to hub dynamo (not included). Enjoy your tours and do not worry about your smartphone, in the NC-17 Connect bag it is safe and the destination accordingly best accommodated. NEW now with cable passage for external charge e.g. from the hub dynamo.