ADVANCED BLUETOOTH 5.4 TECHNOLOGY: Experience seamless audio with our Bluetooth 5.4 adapter, ensuring faster pairing and a stable signal over a 33ft range. Ideal for enhancing your audio experience during movie nights or while flying, providing a smoother and more reliable connection. LONG-LASTING BATTERY PERFORMANCE: Enjoy up to 14 hours of uninterrupted audio streaming with our Bluetooth transmitter, which only requires 2 hours to fully charge using the included USB-C cable. Additionally, it supports charging while in use, ensuring you never run out of power during your favorite shows or long drives. VERSATILE DUAL PAIRING CAPABILITY: Our device supports dual pairing in TX mode, allowing you to connect two Bluetooth headphones simultaneously, or link two smartphones in RX mode. CONVENIENT BUILT-IN MICROPHONE: Equipped with a built-in microphone, this AUX Bluetooth adapter for cars enables hands-free calls, allowing you to focus on driving while maintaining clear conversations. FLEXIBLE TRANSMITTER AND RECEIVER MODES: Whether you're transmitting audio from your TV, PC, or game console to Bluetooth headphones in TX mode Color: Black Material: ABS Package Contents: 1set x 2-in-1 audio adapter 1 x A conversion head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.