Bluetooth 6.0 dual mode with low energy and low latency for enhanced performance. Supports simultaneous connection of up to 7 devices, making it ideal for multi-device users. Intelligent low-power chip and RF transceiver for lower latency and flexibility in Bluetooth applications. Compatible with a wide range of Bluetooth specifications, including 3.0, 4.0, 5.0, 5.1, 5.3, and 5.4. Operating temperature range of -20 to 70℃, ensuring reliable performance in various environments. Product Name: USB Bluetooth Adapter Model: RTL60B Bluetooth Version: 6.0 (BLE Low Energy, EDR Low Latency) Transmission Distance: 20 meters (in unobstructed environments) Supported Protocols: A2DP, HSP, AVRCP, HID, AAC, SBC, etc. Supports Cass2 Power level up to 20 meters (open environment). Supports USB 2.0/3.0 interfaces. Operating systems: For Windows 8.1/10/11 (driverless, plug and play), Windows 7 requires driver installation. Supported protocols: HFP/HSP (hands-free calling/headset), A2DP/AVRCP (stereo music), HID/HOGP (keyboard and mouse), AAC, SBC, Android smartphones, etc. Color: Black Material: plastic Package Contents: 1*USB Bluetooth 6.0 Adapter