Description: This wireless serial port adapter has three plug types, they are US plug, UK plug and EU plug. It has good communication sensitivity, which will help you in high efficiency data transmition. Equipped with a power adapter and a data cable, it is easy and convenient to use. It is universal, and the profile is serial port profile.   Specifcation: Plug: US, UK, EU Standard: SIG v2.0 BT profile: serial port profile Baud rate: 4800, 9600, 19200, 38400, 57600, 115200bps Modulation system: 2.4G Communicatin diatance: class2 10 meters, class1 100meters(open space) Transmitting power: class2 3dBm, class1 20dBm Reception sensitivity: class2 -80dBm, class1 -86dBm Current: class2 8/25mA, class1 55/60mA Size: about 78x34x16mm Battery: built-in rechargeable battery Package included: 1 pc x serial adapter 1 pc x power adapter 1 pc x data cable   Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering.