Specification:

1.Weight:39g(with pin)

2.FLASH:QSPI 4MB Flash / 8MB PSRAM

3.SRAM:520kB SRAM

4.KEY:reset,BOOT

5.Working voltage:2.3V-3.6V

6.Working current:About 4mA

7.Sleep current:1mA

8.Working temperature range:-40℃~+85℃

9.Size:91.10mm*32.75mm*19.90mm

10. Supply:USB 5V/1A

11.Charging current:1000mA

12.Battery:3.7V lithium battery

13.Standard:FCC/CE/TELEC/KCC/SRRC/NCC(esp32 chip)

14.Frequency range:2.4GHz~2.5GHz(2400M~2483.5M)

15.Transmit :22dBm

16.Communication distance:300m