This device is locked to T-Mobile and can be used with T-Mobile, Metro by T-Mobile, Ultra Mobile, Simple Mobile, and other T-Mobile sub-carriers. The Apple iPhone 7 Plus is a larger and more advanced version of the iPhone 7, featuring a 5.5-inch Retina HD display and powerful dual-camera system. Identified by the model numbers A1784 and A1661, this iPhone delivers a premium user experience with a blend of performance and innovative features. Key Features: 5.5-inch Retina HD Display: Enjoy a spacious and vibrant display that brings photos, videos, and apps to life in stunning detail. Dual-Camera System: Capture professional-quality photos with the dual 12MP rear cameras, featuring optical zoom at 2x and up to 10x digital zoom for impressive versatility. A10 Fusion Chip: The A10 Fusion chip ensures smooth performance and efficient multitasking, providing a responsive and powerful user experience. Water and Dust Resistance: With an IP67 rating, the iPhone 7 Plus is resistant to water and dust, offering durability for everyday use. Stereo Speakers: Experience immersive audio with stereo speakers, delivering enhanced sound quality. Technical Specifications: Model Numbers: A1784, A1661 Display: 5.5-inch Retina HD Processor: A10 Fusion chip with 64-bit architecture Storage Options: Available in various storage capacities Camera: Dual 12MP rear cameras, 7MP front camera Wireless Connectivity: Wi-Fi, Bluetooth, NFC Operating System: iOS (Upgradable to the latest version) Security: Touch ID: Securely unlock your iPhone, authorize payments, and protect your personal data with the Touch ID fingerprint sensor.