- Bluetooth 5.3 transmitter and receiver two-in-one, compatible with smartphones, tablets, laptops, TVs, car audio systems, and Bluetooth speakers - Allows dual pairing: connect two devices at the same time in TX and RX modes, ideal for sharing audio without disturbing others - 240mAh rechargeable battery with up to 13 hours of autonomy in receiver mode and 16 hours in transmitter mode; fully charges in just 50 minutes - Intuitive controls to answer, reject, or hang up calls, change songs, and activate headphone mode during private calls - LED light on buttons for easier nighttime use and increased safety while driving - Compact, lightweight, and portable design, with a flexible connector for easy installation in tight spaces, such as behind wall-mounted TVs - Universal connection via 3.5mm AUX plug, compatible with most audio devices - Practical solution to convert traditional sound systems into modern wireless systems