TTGO T-Beamv1.0 Chipset ESP32 WiFi Module Bluetooth 915MHz LoRa NEO-6M GPS Module with SMA Antenna, Original Version, Original Version 915MHz

1. Working voltage: 1.8~13.7V
2. Acceptable current: 10 ~ 114 mA
3. Emission current:
- 120mA at + 20dBm
- 90 mA is at + 17dbm
- 29mA at + 13dBm
4. Working frequency: 923MHz
5. Transmit power: +20dbm
6. Sensitivity reception:
- 139DBM is located at Lora & 62.5khz & SF = 12 & 146bps
- 136DBM is at Lora & 125khz & SF = 12 & 293bps
- 118DBM It is located at Lora & 125khz & SF = 6 and 9380bps
- 123DBM lies at FSK and 5KHz and 1.2Kbps
7. Frequency error: +/- 15kHz
8. FIFO space: 64bytes
9. Vote on data:
-1.2K ~ 1300 kbps at FSK
-0.018k ~ 37.5kbps to Lora
10. Modulation mode: FSK, GFSK, MSK, GMSK, Lora TM, Ook
11. Interface Module: SPI
12. Sleep Current:
- 0.2UA Sleep
- 1.5Ua Idle.
13. Working temperature: -40 degrees Celsius- +85 degrees Celsius
14. Digital RSSI function
15. Automatic frequency correction
16. Automatic gain control
17. Low voltage detection and temperature sensor
18. Fast Wake-up and Frequency Skipping
19. Highly configurable package manager
20. Global Positioning System
21. Neo-6m GPS module, universal 3V-5V power supply
22.Designated module with ceramic antenna, super signal
23. Save EEPROM configuration parameter data
24. Battery with data backup
25. LED signal indicator
26. Default baud rate: 9600
27. Power: TP5400, 1A Battery Management
28. LED indicator
29. CP2104-GMR
30. Pre-flash firmware: softrf v4.0

This product is based on Lora radio frequency, 868 MHz (common in North America), 915 MHz (common in Europe) and 433 MHz (common in Asia Pacific)