One of the best mini DAC receivers with headphone boost and aptx LL (perfect for latency free wireless audio)

• Douk Audio B9 is a stereo Bluetooth 5.0 receiver & USB DAC, the USB interface can be used for 5V power supply and USB input (support phone OTG), plug and play, no need for any driver, can match well with most digital audio devices such as ipod, phone, tablet, computer etc. to provide HiFi lossless music.
• With analogue and digital output. Stereo L/R RCA / 3.5mm AUX outputs, can connect most analog audio devices, 3.5mm output jack also can connect headphones to enjoy music alone. And especially design a coaxial output for audio dac or those active speaker with coaxial input, with a wide range of adaptability.

• DC 5V working voltage, can be powered by phone charger or power bank or computer, also can greatly improve the sound quality for car speakers and avoid the trouble of inserting U-disk or CD when on the road. With volume control and green/white/yellow LED indicator, easy to use and clearly show the working status in real time.

Comes with a USB-A to USB-C power cable and a URGREEN RCA Splitter cable

Perfect for audiophiles or gaming (no lag) all completely wireless. 

Device is very rare and not in production any more, nothing new comparable available!