This Square Terminal is a wireless credit card reader that is perfect for businesses of any size. With its compatibility with iPhones and other devices, it allows for easy and convenient transactions. The Square Terminal is a reliable and efficient way to process payments, making it a must-have for any retail or service industry. The SPD2-01 model is the US version and is in working condition. It is designed by Square, a trusted brand in the industry. This all-in-one credit card reader is ideal for businesses looking to streamline their payment processing and increase efficiency. With its compact design and easy-to-use interface, the Square Terminal is a great investment for any business owner.