Install App: www.payqi.com/app/install.html; PayQi is a Dual SIM & Dual standby adapter for iPod Touch 5; Built-in li-ion battery (500mA); Supports frequency: 850 / 900 / 1800 / 1900MHZ; Bluetooth version: V4.0 + EDR; Standby time: 60h; Talking time: 3h; Charging port: micro USB; Language: Simplified Chinese / Traditional Chinese / English; Do not need to break jail; Supports function of dual SIM dual standby cellphone, such as voice talking, SMS and online surfing.