We don't recommend dealing with this supplier. Their Whois result did not provide detailed information on their registration, their website did not provide any contact details except for an online enquiry/order form, their prices are too good to be true and they only accept WU which is an unsafe payment method.
If you click on the 'Learning' Tab on any SaleHoo page, you will find some excellent tips on how to find good suppliers. And if you check the forum, you will find posts on sourcing Iphones and other Apple Products.
All the best,