Portable mini USB Bluetooth receiver CSR 4.0 Bluetooth transmitter wireless Bluetooth audio adapter.

characteristic: This mini USB Bluetooth 4.0 adapter has high speed, Simple pairing, good anti-interference performance, This is a simple solution that can connect your computer to your smartphone, Tablet or other Bluetooth devices. Simple pairing. Good anti-interference ability. Bluetooth low-power wireless USB encryption dongle. Dual mode Bluetooth transmission. Low power consumption options include 1.2 and 3.6 VI/O. Supports Bluetooth voice data. Supports multiple languages. Backward compatible with Bluetooth v1.2/2.0/2.1/3.0.