ELECOM Bluetooth USB Adapter (Class 1 compatible) Maximum communication distance: 100m LBT-UAN05C1 Purchased on January 20, 2025, but was incompatible with my existing devices and could not be used. Opened but unused. The outer plastic packaging may have minor scratches, but there are no noticeable scratches or damage. If you are concerned about this, please refrain from purchasing. Supports "Class 1" for high-power Bluetooth output class. The maximum communication distance is "100m radius" for wireless connection. (Distance is a theoretical value.) The chipset uses a reliable Qualcomm chip. Bluetooth Standard Version 4.0 Compatible with devices from Ver 1.2 to 3.0 Bluetooth Power Class 1 Line of sight: Approximately 100m USB Interface: USB 2.0