Features: The T5 S3 4.7in e-paper development board integrates s3 with double band WiFi and SX1262 transceiver, offering multiple protocol connection across 433/868/915MHz frequencies. Equipped with 16MB flash, 8MB PSRAM, capacitive touch interfaces clock, microed expansion, and double battery management chip (BQ25896+BQ27220) for optimized power efficiency in embeddedly projects. Ideal for electronics engineers, developers, and maker creating energy efficient intelligent devices, sensoring networking, or wireless communication prototypes. Perfect for building battery power endpoints, e paper signage systems, or environmental monitoring solution requiring long ranging communication and low power e-paper displays. The 4.7in e-paper screen ensures crisped visibilities in sunlight while not consuming power during statics imaged retention, making it exceptional for outdoor digital applications. Specifications: MOdel：T5 S3 4.7in e-paper Epaper S3 Development Board Integrates s3 Driver： ED047TC1 Resolution: 540x960 Equipped With double band WiFi/and SX1262 Transceiver 16MB flash, 8MB PSRAM Material: Plastic Size: about 129x69x11mm/5.08x2.72x0.43in Package：433/868/915MHz Optional Package Includes: 1Pc T5 S3 4.7in e-paper Epaper S3 Development Board note: Due to problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.