Features 1、MULTI FUNCTIONAL: The ESP32 S3 A7670E 4G development board designed by for Waveshare is a versatile and high performance microcontroller board. 2、ADVANCED FEATURES: Equipped with A7670E 4G communication module, OV camera interface, RGB lighting, battery slot, and more for added functionalities. 3、ENHANCED CONNECTIVITY: Features ESP32 S3R2 with low power Wi Fi and for BLE5.0, along with external 16MB Flash and 2MB PSRAM for improved connectivity(built in). 4、SECURE CONNECTION: Hardware encryption accelerator, RNG, HMAC, and digital signature module provide enhanced security for IoT applications. 5、EFFICIENT USAGE: A7670E 4G communication module enables mobile network connectivity, making it ideal for IoT, mobile devices, outdoor surveillance, and smart home applications. Specification Item Type: 4G for LTE Development Board Material: PCB, Ceramics Support Frequency Bands: LTE FDD Bands B1, B3, B5, B7, B8, B20; Data Transfer: ≤5Mbps (UL), ≤10Mbps (DL); for GNSS: for GPS, for Beidou, for GLONASS; Processor: High performance 32 bit for LX7 dual core processor, up to 240 MHz; Connectivity: 2.4 GHz Wi Fi (802.11 b g n) and BT 5 (LE) with onboard antenna; Memory: 512KB SRAM, 384KB ROM, stacked 2MB PSRAM, external 16MB Flash(Built in); Battery: 1 x 18650 (not included); Memory Card: Maximum support 32G (not included) Package List 1 x Development Board 1 x Camera 1 x Speaker 1 x Ceramic Antenna 1 x FPC Antenna 1 x Ribbon Cable 1 x Screwdriver 1 x Screws Pack 4 x Double Sided Tape 4 x Acrylic Board 1 x USB Cable 1 x Terminal Connector