Brand: Astrum SKU: A85004-B Manufacturer Product Code: BT040 Product Overview The Astrum BT040 Nano Bluetooth USB Adapter instantly adds Bluetooth connectivity to laptops and desktops that lack built‑in support. With CSR V4.0 technology, it delivers reliable wireless connections up to 20m (33ft) with a 3Mbps transfer rate. Its nano‑sized design allows you to leave it plugged in without blocking other USB ports, making it ideal for everyday use. Perfect for connecting Bluetooth‑enabled devices such as printers, mobile phones, headsets, and speakers. Key Features Nano Bluetooth USB dongle with ultra‑compact design Bluetooth CSR V4.0 technology for stable connectivity Up to 20m (33ft) wireless range Transfer rate up to 3Mbps Plug‑and‑play, no installation required Compatible with laptops and desktop PCs Supports Bluetooth devices: printers, phones, headsets, speakers Technical Specifications Range: Up to 20m (33ft) Bluetooth Version: CSR V4.0 Transmission Speed: Up to 3Mbps OS Support: Windows 10 and below Weight: 15g Warranty: 12 Months What’s in the Box 1 × Astrum BT040 Nano Bluetooth USB Adapter