This is the HC-05 Bluetooth RF transceiver module. This will allow you to add Bluetooth functionality to your next project at a very low cost. This can be used to connect your project to a computer or to an any android device that supports Bluetooth version 2 or higher and communicate with it wirelessly.

Specs:

Bluetooth protocol:　Bluetooth Specification v2.0+EDR USB protocol: USB v1.1/2.0 Frequency: 2.4GHz ISM band Modulation: GFSK(Gaussian Frequency Shift Keying) Transmit power: ≤4dBm, Class 2 Sensitivity: ≤-84dBm at 0.1% BER Rate: Asynchronous: 2.1Mbps(Max) / 160 kbps Synchronous: 1Mbps/1Mbps Security features: Authentication and encryption Support profiles: Bluetooth serial port (master & slave) Power Supply: +3.3VDC 50mA Working temperature: –5 ~ +45 Centigrade

New programming option: I can program the module ahead of time before shipping. Message and leave programming specs or email them to hanscorp2014@gmail.com.