Specification:
New and high quality
Type: USB Adapter Bluetooth 5.1 Bluetooth
Version: V5.1
Interface type: USB
Transmission distance: about 20 meters/65.62 feet
Transmission speed: 10 Mbps
Working frequency: 2400 (MHz)
Color: As shown
Size: Reference picture
Package includes: 1pc

Note:
Please refer to the measurement Tiny measuring error is allowed in normal range
As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image