[IC]：TLSR8266

[Frequency]：2.400~2.483GHz

[Protocol]：BLE 4.2

[Distance]：70m

[Interface]：UART

[Weight]： 0.5±0.1g

[Introduction]：E104-BT05 Bluetooth serial communication module is a data transmission module based on Bluetooth Specification V2.1 BR / EDR Bluetooth protocol.The working frequency is 2.4GHz ISM, and the modulation method is GFSK. The module's maximum transmission power is 3dBm.