This USB wireless audio transmitter is an efficient audio transmission device, which has a variety of advanced characteristics and functions. Its input port adopts a USB interface and can be convenient to connect to various devices. In the case of unobstructed, the transmission distance can reach 8 meters, allowing you to enjoy greater flexibility when using. The frequency range of the transmitter is 2.402GHz-2.480GHz, supporting A2DP, AVRCP, and HFP to ensure the stable connection and smooth audio transmission of various compatible devices. The power supply of the device is used in USB DC5V, which is convenient and easy to use. It also supports ordinary voice and broadband voice. The sampling rate is 8K and 16K, respectively. The encoding method is CVSD and MSBC to provide you with high -quality audio experience. Whether it is for music playback, voice calls, or other audio applications, this USB wireless audio transmitter can meet your needs and bring you convenient and excellent audio transmission effects.