[Frequency]： 2

400~2

480GHz [Protocol]： V4

2+V3

0 SPP [Distance]： 30m [Size]： 21*13mm [Weight]： 0

8±0

1g [Feature]： Low power consumption，Dual-mode Bluetooth module [Introduction]： E104-BT40 module is a serial to dual-mode Bluetooth slave module based on Bluetooth 4

2 + 3

0 version, namely low power consumption Bluetooth BLE and classic Bluetooth SPP Profile, which can freely switch between BLE and Classic Bluetooth, working at 2

4GHz