Feature:1. Low Latency and Stable Connection: Equipped with Bluetooth 5.4 technology, this USB Bluetooth adapter optimizes the transmission latency and connection issues of old Bluetooth 5.0. It supports dual mode (BR/EDR + low energy Bluetooth), providing low energy consumption, high speed, and a more stable connection with minimal sound quality loss.2. Extended Coverage Range: With a transmission distance of 328FT without obstacles, this adapter features a built in high performance antenna for wider signal coverage and strong penetration.3. Rotatable Antenna: The antenna can rotate 180 to receive a better signal and maintain a stable Bluetooth connection, ensuring powerful wireless transmission and signal reception from any angle.4. Multi Device Connectivity: Support simultaneous connection to both phones and tablets without the need for data cables, allowing for seamless file transfer and connectivity to game controllers for wireless gaming.5. Plug and Play Compatibility: Compatible for Win 11, 10, 8.1, this USB Bluetooth dongle is plug and play, excellent for connecting Bluetooth keyboards, mouse, headphones, and speakers.Specification:Item Type: USB Bluetooth AdapterMaterial: ABSBluetooth Version: V5.4 (EDR+BLE)TX Transmission Rate: 3MbpsWorking Frequency Band: 2.4GHzTransmission Distance: Approx. 100m/328ftSupport System: for Win 11, 10, 8.1Application: for Bluetooth Keyboards, Mouse, Headphones, Speakers.Package List:1 x USB Bluetooth Adapter1 x User Manual