Specifications: 

• Product Number: B105A
• Dimension 23.8mm x 15.3mm x 7mm
• Material ABS
• Color Black
• Upstream USB-A
• Downstream Bluetooth v5.1
• Bluetooth 5.1 with EDR – Supports data transfer rate up to 3Mbps.
• Farther Coverage – Supports up to 20M operating range.
• Multi-devices Connection – Enables wireless connectivity with a wide range of devices like printers, phones, headsets, speakers, keyboards, controllers, and more.
• Plug and Play - Plug and Play for Win 11/10/8.1/8, no need to install the driver. *For Win 7/XP/Vista, please install the required driver.