This is a Bluetooth case, connecting to your i phone with dedicated App,
it enables single SIM card i phone to be Dual SIM, for a phone call and SMS operations.
It surpport a phone call and SMS operations.
Network data service does not support.
1.Make i Phone dual SIM dual standby，2SIM working at the same time.
2.Extra battery for i Phone
3.Cases for i Phone
4.Only need charge the adapter cases ,then you can charge your i Phone at the same time.
Battery: 4.7 inches is 1500mAh
5.5 inches is 2500mAh
Material: Matte soft rubber
Charge jack: Lightning
SIM type: Micro SIM
Network standard: GSM
Network band: GSM850MHz / EGSM900MHz / DCS1800MHz / PCS1900MHz
Support iOS:iOS 7-13,
Jailbreak: No need jailbreak
1 x Bluetooth SIM adapter
1 x English manual
1 x Nice gift