[Bluetooth 5.0 Adapter]: Bluetooth 5.0 delivers faster audio data transmission, reduced latency, and high sound quality for seamless music playback. It also supports reliable hands-free calling with an effective range of up to 10 meters. [Hands-Free Calling and Audio Streaming]: Built-in microphone and one-touch multifunction button for answering, ending, rejecting, or redialing calls. Connect the included 3.5mm AUX cable to your car’s AUX port to stream music, make calls, and hear voice navigation prompts through your car’s audio system. [CVC 8.0 Noise Cancellation]: Advanced CVC 8.0 noise cancellation technology minimizes background noise—including wind, traffic, and crowd sounds—and reduces echo for clear voice transmission and enhanced audio clarity. [Dual Device Connection]: Supports simultaneous pairing with two Bluetooth devices. Automatically reconnects to the last connected device when in range, so you won’t miss calls while enjoying music. [What's Included]: 1 x USB Bluetooth adapter, 1 x 3.5mm audio cable, 1 x charging cable, 1 x 3.5mm audio plug, 1 x user manual (English). Color: Black Material: Metal + Plastic Note: Actual product color may vary slightly due to screen settings and lighting conditions. Slight measurement variations of ±1–3 cm may occur.