[Communication interface]:USB
[Operating frequency]:2.4GHz
[Bluetooth protocol]:BLE5.2
[Communication distance]:100m
[Product size]: 18.5*14.5*6.0mm
[Product weight]: 1.7g±0.1g
[Introduction]:EWM104-BT57U is a USB to BLE Bluetooth adapter based on Bluetooth protocol version 5.2. It is small in size, low in power consumption, and works in the 2.4GHz frequency band. The BLE Bluetooth adapter module uses universal AT commands and is easy and fast to operate. Bluetooth modules can be widely used in smart wearables, home automation, home security, personal health care, smart home appliances, accessories and remote controls, automobiles, lighting, industrial Internet, smart data collection, smart control and other fields.