Dual sim card slot. Make you iPhone and Android phones become triple cards triple standby cellphone. * Enable an Apple iPod Touch with phone features. Add functions like telephones, SMS, GPRS internet access to iPad or Android tablet. * Connect to your iOS or Android device via bluetooth within 10 meters range. Compact and exquisite appearance. * Ultra-thin, light weight, easy to carry. * Compatible with iPod Touch 4, iPad, iPhone4/4S, HTC, Motorola, Samsung, Sony Ericsson, LG, etc.