Features 1、SX1262 LoRa Transceiver: Sends and receives ultra long distance and low power consumption data, supporting only 915Mhz. 2、1.54 In Ultra Low Power Ink Screen: local refresh 03S, global refresh 2S. Resolution :200×200 Visual Angle :>170° Save display without electricity. 3、Compatible: QUECTEL L76K GPS module concurrent GNSS receiving module, support 1PPS, AGNSS functions, It supports beidou, GPS, GLONASS, QZSS and other multi‑satellite systems. 4、Built in LNA: Can achieve high sensitivity, high accuracy positioning, signal tracking. 5、Anti Interference: The built in acoustic surface filter can greatly increase the anti interference ability of the module. Specification Item Type: 915MHz T‑Echo Material: ABS MCU: NRF52840 FLASH: 2MB RAM: 256kB Communication Protocol: UART, SPI, TWI, PDM, 12S, QSPI Wireless Protocol: Bluetooth 5, Bluetooth mesh, Thread, ANT, 802.15.4, Zigbee Built in Lithium Battery Capacity: 850mAh (included) Package List 1 x 915MHz T‑Echo 1 x Charging Line 1 x Antenna