Check the listing for details. Bluetooth Wireless Audio Adapter Display/USB/AUX/RCA 4in1 for Home Car Stereo US. Color: Black, Condition: New. Listed at 17.89 USD. Bluetooth Wireless Audio Adapter Display/USB/AUX/RCA 4in1 for Home Car Stereo US 800?'800px':this.width); max-height:800px;height:e­xpression(this.height>800?'800px':this.height)" src="https://image.pushauction.com/0/0/fd66b606-4128-4609-8952-c17524d3d960/7b8e44ba-e577-454b-a18e-ce835e714009.jpeg"> 800?'800px':this.width); max-height:800px;height:e­xpression(this.height>800?'800px':this.height)" src="https://image.pushauction.com/0/0/fd66b606-4128-4609-8952-c17524d3d960/32c1c42b-cce8-4220-9525-83ef4db7634b.jpeg"> 800?'800px':this.width); max-height:800px;height:e­xpression(this.height>800?'800px':this.height)" src="https://image.pushauction.com/0/0/fd66b606-4128-4609-8952-c17524d3d960/3c70d54a-af97-418e-8aa5-b2c2d5270b0c.jpeg"> Features: - Exquisite appearance and portable size. - Adopting Bluetooth 5.0 chip design with stronger compatibility and stability. - 2 in 1 Bluetooth receiving (RX) and Bluetooth transmitting (TX) functions. - Innovative compass volume key design, 360-degree adjustable, more convenient rotating operation, easy to answer calls, play songs, pause, etc. - Equipped with high-definition LED digital display screen, the working status and Bluetooth mode are clearly visible. - Lossless music, HiFi high-definition decoding output, no lag delay, clear sound quality, restore sound details, just like a music scene. - Built-in digital to analog chip, support AUX, RCA, USB, TF interface. - Cool breathing light, red/blue color, soft and not dazzling. - Built-in 400mAh rechargeable lithium battery, long battery life. - Support USB (U disk), TF card playback and transmit. - Built-in high-definition microphone, support wireless listening to songs, hands-free calling, and GPS navigation. - The product connection is simple, without installing any cumbersome USB drivers and downloading APP; - Broad Compatibility: With the included 3.5mm and RCA cables, the multifunctional Receiver Transmitter adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, car stereo etc. Specifications: Bluetooth version: Bluetooth V5.0 Supported protocols: RX: A2DP AVRC TX: A2DP Working frequency band: 2.402GHz -2.480GHz Power class: Power class 2 (Class II) Sensitivity: -85dBm