Hc-05 bluetooth module is the most versatile module in the hc series of modules. It can be configured as a master or slave by the user using very simple at commands. This module is a new and improved version of the module with a onboard led and switch for indication and entering the programming mode - making the module a breeze to configure and work with.
Tested and 100% Working
excellent quality with best material
HC-05 Bluetooth Transceiver Module
It is with TTL Output