Opened but unused. Stored at home. BUFFALO Enables Bluetooth devices to be used on a PC Buffalo BUFFALO Bluetooth ver5.0 + EDR/LE compatible USB adapter for PC, black BSBT5D200BK Product Overview Easy connection, just plug it in to make your PC Bluetooth compatible Even PCs without Bluetooth can add Bluetooth functionality simply by plugging this product into a USB port. No software installation is required. *Internet connection is required for the first connection. Supports Bluetooth Ver.5.0 with improved communication performance - Maximum communication distance: 40m (theoretical value) Communication range and speed are improved compared to Bluetooth Ver.4.0. It has backward compatibility and can also be used with devices of previous standards such as Bluetooth Ver.4.0/3.0/2.1. It supports a wide range of Bluetooth devices. Supports low power consumption mode - Bluetooth Low Energy (BLE) compatible When connecting to BLE-compatible devices, it connects in low power consumption mode. Conveniently extends battery life.