Is it possible to cancel out echo when using a bluetooth handsfree?

**Equipment used:** I just bought a cheap Bluetooth handsfree from china: http://www.miniinthebox.com/mini-stereo-wireless-v3-0-headset_p1187467.html **Explanation:** This works perfect for me, and i don't notice any problems at all. The problem is that for people calling me, or i am calling hears them selves in an echo with about 1 sec lag. I cannot hear this echo at all, but for everyone i talk to with the handsfree set hears this echo. If i mute the mic, then the echo disappears. **My question is this:** Is it possible to remove echo by using any software or android setting? **I think that there should be two ways of doing this:** **1.** muting my mic while the other part talks. (nearly like an automatic walkie talkie) **2.** cancelling what is sent from the other part, and don't send the same sounds back to the other part again.