Brand KALF Quantity 1 Piece Color Black Material Plastic Compatible Models Iphone / iTouch / Ipad Android devices Other Features How it works: After inserting GSM SIM card into this device and connecting this device to your smart phone via Bluetooth you are able to make voice call send SMS and surf the internet. To be brief it enables your smart phone or other communication product to support more than just one GSM SIM card. Main Features: Transform iTouch into a dual card and dual standby Iphone Transform Iphone into a triple card and triple standby smart phone Enable Ipad to achieve the same function as mobile phone Transform Android smart phone (Samsung / HTC / Xiaomi) into a triple card and triple standby mobile phone; Compact design light weight pocket size; Easy to place under cover due to Bluetooth connection with client; Support GSM 850/900/1800/1900 and GPRS; Interface: 2 x SIM card slot 1 x Micro USB charging port Packing List 1 x Intelligent Bluetooth Peel 1 x USB Charging Cable (17cm) 1 x Paper Clip 1 x English & Chinese Manual