Where can I purchase a bluetooth dongle?

[This article is just for Bluetooth headset MindWave Mobile, not for MindSet or MindWave.]

If your computer is not Bluetooth enabled, or if you lost your Bluetooth dongle, NeuroSky recommends that you purchase the following Bluetooth dongle):

IOGEAR USB Adapter http://www.amazon.com/IOGEAR-Bluetooth-Micro-Adapter-GBU521/dp/B007...
To make this dongle working, please insert the dongle package included CD and install the proper driver, or downloaded and install the driver from IOGear website http://www.iogear.com/support/dm/driver/GBU521#display.

SANOXY USB Bluetooth Adapter : this adapter is for XP, Win7 32 bit/ 64 bit, it can't support later OS version Win8 and Win8.1.

http://www.amazon.com/SANOXY%C2%AE-Bluetooth-Wireless-Adapter-eMach...

ASUS USB Adapter : this adapter is for XP, Win7 32 bit/ 64 bit, it can't support later OS version Win8 and Win8.1.

http://www.amazon.com/Asus-Mini-Bluetooth-Dongle-USB-BT211/dp/B0041...?