The headphone jack on the TomTom Go 40 is a standard Micro USB. You can use wireless headphones too. See our full range headphones.
No
Yes. See our full range of Micro USB flash drives compatible with the TomTom Go 40.
Micro SDHC are compatible with the TomTom Go 40
The TomTom Go 40 has a Micro USB data and charging connection.