Wirele USB Adapter Low Power Transmiion Music Audio Receiver Transmitter Bluetooth-Compatible 5.3 for Computer Speaker MouseFeature:1. Bluetooth-Compatible 5.3 Technology:Equipped with the latest Taiwan Realtek 5.3 chip, this adapter fully complies with Bluetooth-Compatible 5.3 technical specifications. It supports dual-mode and low-power transmiion, ensuring efficient and reliable connectivity.2. Extended Range and Stable Transmiion:Experience an impreive transmiion distance of 10-20m (unobstructed) and a strong signal. With a transmiion rate of 3Mbps, enjoy high-speed file and audio data transfers without interruption.3. Original Manufacturer Driver Software:The REALTEK driver management software provides convenient and powerful features, supporting various application program extensions. This user-friendly software enhances compatibility and ease of use.4. Low Latency and Energy-efficient:The intelligent sleep and wake-up feature helps conserve energy, while the 24-bit CRC (Cyclic Redundancy Check) ensures resistance to interference. The adapter is fully backward compatible with Bluetooth-Compatible 2.0, 2.1, 3.0, 4.0, 5.0, and 5.1 standards, ensuring seamle connectivity.5. Universal USB 2.0 Interface:With its compact and portable design, this adapter utilizes the widely compatible USB 2.0 interface. Carry it with you wherever you go. Enjoy strong compatibility, high-speed stability, and extended receiving range. Compatible with popular operating systems like Windows 7, 8.1, 10, and 11 (driver-free usage for Windows 8.1/10/11). Connect your computer to various Bluetooth-Compatible devices, including headphones, speakers, mice, keyboards, game controllers, smartphones, printers, and more, enabling wirele audio, data, and image transmiion.Specification:Product model: RTL803Bluetooth-Compatible version: Bluetooth-Compatible 5.3Transmiion distance: 20m (in Acceibility)Supported protocols: A2DP/HSP/AVRCP/HD and other protocolsPackaging size: 123 * 104 * 12mm/4.84 * 4.09 * 0.47inIncluding packaging weight: 27g Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement. 1 x Adapter1 x Disc1 x Instruction manual