This Samsung isn’t the first dual SIM phone It comes equipped with Bang & Olufsen / ICEPower amplifier to improve the sound quality of the speakers. Besides all that, we have more specs for you:

Triband GSM (900/1800/1900 Mhz), GPRS/EDGE connectivity on 1st SIM card
Dual band (900/1800 Mhz), GPRS/EDGE connectivity on 2nd SIM card
2 inch 262K color QVGA AMOLED display
5 megapixel camera with autofocus, image stabilization, smile detection, WDR and LED flash
FM Radio with RDS
1 GB of built-in memory
microSDHC memory card slot (up to 8 GB)
Bluetooth 2.0 and USB
960 mAh battery
Dimensions: 115 x 48 x 16 mm
Weight: 140 g