2X Serial Bluetooth Module RJ45 to RS232 Line Serial Port Bluetooth Console Line

2X Serial Bluetooth Module RJ45 to RS232 Line Serial Port Bluetooth Console Line Description

Implementation standard: Bluetooth v2.0,
Bluetooth protocol: Bluetooth serial port profile (SPP)
Communication rate: 4800, 9600, 19200, 38400, 57600, 115200bps
Modulation mode: 2.4G direct sequence frequency hopping (FHSS)
Communication distance: 5 meters (open space)

Transmit power: 3dBm
Acceptance sensitivity: -80dBm
Working current/pairing current: 8/25mA
Dimensions and weight: 78x34x16mm 29g
Battery usage: 1-2 hours for full charge, 8-10 hours for full use
Colour:black white
Material:plastic

Package Contents:
2 x BT578 serial port Bluetooth adapter
2 x DB9 female to female adapter
2 x 410mAh lithium battery (built-in)
2 x 220V-USB power adapter
2 x USB power supply charging cable

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.