No
No
Nano
The headphone jack on the HTC One A9s is a standard Micro USB. You can use wireless headphones too. See our full range headphones.
No
Yes. See our full range of wireless headphones compatible with the HTC One A9s.
Yes. See our full range of Micro USB flash drives compatible with the HTC One A9s.
Micro SDHC, and Micro SDXC are compatible with the HTC One A9s
The HTC One A9s has a Micro USB data and charging connection.