1. New version of ESP32: REV1
2. Wi-Fi/Bluetooth/4MB flash memory/4MB PSRAM/3D antenna/LORA

Product description
1. Working voltage: 1.8~3.7v
2. Acceptable current: 10~14mA
3. Emission current:
-120mA at +20dBm
-90 mA at +17dBm
-29mA at +13dBm
4. Working frequency: 868MHz version SX1276
5. Transmitting power: + 20dBm
6. Receiving sensitivity:
- 139dBm at LoRa and 62.5Khz & SF = 12 and 146bps
- 136dBm at LoRa and 125Khz&SF = 12 & 293bps
- 118dBm at LoRa & 125Khz & SF = 6& 9380bps
- 123dBm at FSK & 5Khz & 1.2Kbps
7. Frequency error: +/- 15KHz
8. FIFO space: 64Byte
9. Data rate:
- 1.2K~300Kbps at FSK
- 0.018K~37.5Kbps in LoRa
10. Modulation mode: FSK, GFSK, MSK, GMSK, LoRa TM, OOK
11. Interface form: SPI
12. Sleep current:
- 0.2uA in SLEEP
- 1.5uA in IDLE
13. Working temperature: -40 degrees Celsius-+ 85 degrees Celsius
14. Digital RSSI function
15. Automatic frequency correction
16. Automatic gain control
17. RF wake-up function
18. Low pressure detection and temperature sensor
19. Fast wake-up and frequency hopping
20. Highly configurable packet handler

Global Positioning System
1. GPS module NEO-M8N, 3V-5V power supply universal
2. Designated module with ceramic antenna, super strong signal
3. Save configuration parameter data EEPROM Down
4. With data backup battery
5. With LED signal indicator
6. The default baud rate: 9600

Power
1. TP5400
2. 2A battery management
3. LED indicator: There are 4 LEDs to display the battery status in real time.
4. Power button: Click once to start. Tap twice quickly to close.
5. USB
6. CP2104-GMR
7. Pre-flash firmware: SoftRF V4.0

Packing list:
1. TTGO T-Beam ESP32
2. 433MHz antenna
3. Pin x 1
4. Screw Washer x 3

Note: OLED is not included in the invoice