NoteThis product is not supported on Mac OS/IOS system.Feature:1. Bluetooth-Compatible 5.3 Technology: This product features the Taiwan Realtek RTL8761BW chip, which truly complies with the Bluetooth-Compatible 5.3 technology specifications, providing low-power dual-mode transmiion. The 5.3 Bluetooth-Compatible adapter is a new and fast high version that is highly compatible, stable, and has a longer receiving distance.2. Longer Transmiion Distance and Stable Rate: With a transmiion distance of up to 10-20m (unobstructed) and strong signals, this adapter provides a stable rate of 3Mbps for high-speed file and audio data transfer.3. Original Driver Management Software: The Realtek driver management software is easy to use, powerful, and supports multiple application program extensions.4. Ultra-Low Latency Speed Connection: With intelligent sleep and wake-up energy-saving features, 24-bit CRC verification to resist interference, and adaptive frequency hopping to reduce crotalk, this adapter provides an ultra-low latency speed connection.5. USB2.0 Interface: With a universal USB2.0 interface and miniature design, this adapter is portable and convenient to carry around. It is fully compatible with Bluetooth-Compatible 2.0, 2.1, 3.0, 4.0, 5.0, 5.1, and other specifications. It supports Windows7/win8.1/win10/11 mainstream operating systems, and no drivers are needed for Win8.1/10/11.Specification:Bluetooth-Compatible: 5.3Color: BlackTransmiion distance: 20m (in an acceible environment)Transmiion rate: 3MbpsChip: RTL8761BWSupported protocols: A2DP/HSP/AVRCP/HID and other protocols