Help in selecting Bluetooth module to buy from taobao.com China

I need to buy a few bluetooth HID modules from [login to view URL] I need help in selecting one. Any one who has knowledge of chinese and embedded development can help me. I don't want you to write any code or other development. I want you to talk to seller and get the documentation My primary requirements are 1) Module need to act as bluetooth hid Keyboard device (supporting classic bluetooth 2.0 or 3.0 ). I already have bluetooth 4.0 LE module so don't need it. 2) It shall not cost more than 15 yuan. 3) The module should have interface for me to connect to my micro-controller project using SPI or UART or I2C or any similar protocol and be able to send keystrokes. I cant communicate ib chinese, so I need your help in getting the documentation on how to interface , like AT commands or SPI commands to send key strokes. I have identified a few myself modules myself but i cant get documentation myself. If you have any question please ask me. [login to view URL]