Haipai I9377 smartphone features popular operating system of Android 4.0 and MTK6577 Cortex A9 Dual Core 1.0 GHz. Characteristic of dual card dual standby don't let you miss any call. Other functions, such as FM radio, bluetooth, playing music, video, recorder, camera, alarm, etc. can satisfy your common needs. Moreover, network of WLAN and WiFi let you surfing at anytime and anywhere.
Any more information iphone 4s battery case please go to tabletpcphones.com