Universal Compatibility: This versatile Bluetooth 5.3 adapter seamlessly integrates with your car audio, home speakers, headphones, and even your TV or PC, providing high-quality wireless audio streaming. Advanced Bluetooth 5.3 Technology: Experience superior sound quality and a stable, efficient wireless connection thanks to the latest Bluetooth 5.3 technology. Compact Design: The sleek, portable design makes it easy to enjoy your favorite music wirelessly, whether at home or on the go. Easy to Use: Simply plug the adapter into any device with a 3.5mm jack, pair it with your Bluetooth device, and enjoy uninterrupted audio streaming. Charging voltage: 5V Charging current: 186mA Working current: 20mA Shutdown current: 47uA Charging time: 2 hours Working time: RX13H, TX17H Battery capacity: 240mAh Bluetooth version: Version 5.3 Bluetooth transmission distance: 10M in a straight line (The product appearance and printed words may vary depending on the batch, but this does not affect use) Color: As shown Material: ABS Package Contents: 1 x Wireless Audio Adapter 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.