TTGO T-Beam V1.1 ESP32 LORA 433MHz WiFi Wireless Bluetooth Module with IPEX &18650 Battery Holder-Unsoldered

  • Working voltage: 1.8~3.7v
  • Acceptable current:10~14mA
  • Transmit current: 120mA@+20dBm,90mA@+17dBm,29mA@+13dBm
  • Operating frequency: 433/470MHz(433HMz version) /868M/915M(868MHz version)
  • Transmit power: +20dBm
  • 4MB flash memory,
  • Low voltage detection, and temperature sensor,
  • Fast wake-up and frequency hopping LED signal indicator, and battery with data backup.