[IC]：nRF52832

[Frequency]：2.379~2.496GHz

[Protocol]：BLE 4.2/5.0

[Distance]： 0.1km

[Interface]：SoC

[Weight]：1.8±0.1g

[Introduction]：E73-2G4M04S1B is a hardware platform without firmware, so users need to conduct secondary development.For more details about nRF52832, please refer to the official datasheet. This module has maximized the RF Characteristic of chip. Built in 32.768K real-time clock crystal oscillator for self-programmed.