100% Genuine

Samsung EB-F1A2GBU

Rechargeable Li-Ion Battery - The Original
3.7 V, 1650mAh

Genuine Samsung accessory

Soft case protects the battery pack during storage and transportation.

Fits Samsung mobile phones using EB-F1A2GBU battery:

GALAXY S2 / GT-i9100

Perhaps there are more models using this battery...