ITEM NAME:Wireless Bluetooth RF Transceiver Module HC-05 RS232 HC-05/06 TTL for SE Feature Data link: https://www.mediafire.com/file/ob1f2toa2yubyhu/229JDY30.rar/file Advantages: it can replace all Bluetooth 3 and 2 serial communication modules on the market. Support Bluetooth SPP protocol, transmission speed can reach 30kb/s Application scope: 1: Bluetooth printer 2: Bluetooth POS machine 3: smart home control 4: Bluetooth wireless data transmission Package include: 1pc* HC-05 Bluetooth RF Transceiver Module.1pc HC-05 Bluetooth RF Transceiver Module. 4: Bluetooth wireless data transmission. Support Bluetooth SPP protocol, transmission speed can reach 30kb/s. 1: Bluetooth printer. 2: Bluetooth POS machine.