Description: CD Lossless Sound Quality: Bluetooth adapter sound and picture synchronization, real experience of 3D stereo effect, speakers in the middle of the night to chase dramas without disturbing your family wireless watching dramas, ball games, more convenient. Stable Transmission: The RTL8691B chip long term stable operation, you can enjoy your favorite wireless content uninterrupted within a distance of about 20m. Bluetooth 5.1 Chip: USB Bluetooth 5.1 receiver transmitter can achieve faster transmission speed, more device connections, and more stable transmission conditions. Bluetooth Adapter: Inserting this Bluetooth adapter can make ordinary computers have Bluetooth function, so as to realize audio and data transmission between the computer and other devices with Bluetooth transmission function, such as mobile phones, Bluetooth headsets, Bluetooth speakers, Bluetooth mouse and keyboard, etc. Portable: The compact Bluetooth adapter is small, lightweight and easy to carry. Plug and play, no driver required. Specification: Model: BT1-15 Bluetooth Version: Bluetooth V5.1 Transmission Distance: 20m No barrier Material: Plastic Color: Black Weight: 0.05kg Size Chart: Approx.3.4cmx1.1cmx0.7cm/1.34inchx0.43inchx0.28inch Package Includes: 1x Adapter 1x Driver CD Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!