EMC3380 Wi-Fi/BT Module -802.11 a/b/g/n 1T1R 2.4/5GHz dual frequency . 

Comply with Low Power Bluetooth 5.0 Standard

Support Bluetooth Master-Slave Mode and BLE Mesh

Audio : I2S interface 

Operating Temperature：-20℃ to +85℃

On-Board PCB Antenna

Without PSRAM

8M bytes Flash Memory