What ‘s this memory case ?
Upgrade your phone by upgrading your case. The iXpand Memory Case delivers more storage for your iPhone 6 or iPhone 6s. Available in 32GB (1) of extra storage for all your content (2) and with an optional add-on battery pack that gives you more battery life (sold separately). The iXpand Memory Case gives you more space so you can keep taking pictures, listening to music, watching videos, playing games and doing all of the other things you do with your iPhone.
Available with 3 capacity, you have possibility to add a battery (in option)
Price depends fo its capacity (between 50 to 300 euros) see the webiste