Get two active numbers in one. Use one simple device and one smartphone app to manage and control all the stuff in your second phone. Carrying two phones is inconvenient. It isn’t fashionable or stylish; it costs a lot and is a waste of space. That’s why PIECE exists. PIECE is the future of Dual SIM technology. It is a tiny companion device that holds any GSM, EGSM, DCS, or PCS card, allowing you to add an extra number to your existing smart device via Bluetooth. It is designed to fit in your wallet, front pocket, or behind your phone easily. PIECE is so small that it is only the size of a credit card. And that’s why they call it the next small thing.