The mini USB Bluetooth dongle with CSR V2.1 EDR chipset, which works with Kit-4412 Android 4.x platform.

Bluetooth v2.1+EDR compliant : Enhanced Data Rata (EDR) compliant for both 2Mbps and 3Mbps modulation modes
Full speed USB v1.1 Interface
Class II standard supports range of 10 meters
Low power consumption