This Avantree HT4189 Wireless Headphone Transmitter Set is a perfect solution for all your wireless audio needs. With its Bluetooth technology, you can easily connect it to your device and enjoy music, movies or take calls without any hassle. The black color and adjustable headband feature make it look stylish and comfortable to wear for extended periods. This headset is compatible with various devices and has a range of up to 33 feet. It is perfect for use in consumer electronics, portable audio and headphones. With its wireless feature, you can move around freely and enjoy your audio without any interruptions. Get your hands on this Avantree model AV-BTHT-4189-BLK and experience the freedom of wireless audio.