Unwanted upgrade. All items in the box are still sealed (as you can see from the photo).
Inside the box:
Samsung Galaxy SII Smart Phone
Battery
Charger
Data Cable
Headset (with interchangeable ear buds)
Mini SD Card Converter
Samsung Galaxy SII User Guide
Orange Instruction Manual
For phone spec see: http://shop.orange.co.uk/​mobile-phones/​samsung-galaxy-SII#device-spec