Specifications Brand LILYGOModel T Echo LiteMCU NRF52840Memory FLASH 1MBRAM 256kBProgramming Platform Arduinos IDE VS CodeWireless Connectivity bluetooth 5 Thread ANT bluetooth Mesh 802 15 4 Zigbee3 0 2 4 GHz proprietarySX1262 LoRa Transceiver Long Range Low PowerSupport Bands 868MHzDisplay 1 22 inch SPI E Paper DisplayResolution 176 x 192Type Name GDEM0122T61L76K Multi System Positioning GNSS Module Support Systems GPS GLONASS BeiDou QZSS Internal Optional With Without L76K GPS Function Dimensions 41 x 41 x 14 5 mmBattery Charging 5V 500mAFeatures 1 Versatile wireless connectivity supporting multiple protocols 2 High resolution E paper display perfect for low power applications 3 Integrated LoRa transceiver for long range communication 4 Multi system GNSS module for accurate positioning 5 Expandable functionality with multiple IO options for customization Package Include optional with Screen with Shell 1 x T Echo Lite2 x Pin2 x Power Cableor without Screen without Shell 1 x T Echo Lite Base1 x Antenna2 x Pin2 x Power Cableor L76K GPS expansion module 1 x GPS1 x expansion module