CSR4.0 USB Bluetooth Dongle Audio Receiver Transmitter Black

Highlights
Adopt CSR8510 A10 chip, chip, truly in line with BT 4.0 technical specifications
dual mode transmission. 20m ultra-long transmission distance (no barrier), strong signal. 3Mbps stable transmission rate to provide high-speed file, audio data transmission. Ultra-low delay speed link, intelligent sleep wake energy saving, 24-bit CRC check to resist interference, adaptive frequency hopping to reduce crosstalk. Compliant with Bluetooth 2.1 + EDR, 3.0 + HS and
HS and advanced Bluetooth 4.0 LE specifications