Feature:1. Support Multiple Devices: Support 5 devices to connect at the same time, realize the computer and other devices with Bluetooth function to connect.2. Bluetooth 5.3: High performance Bluetooth 5.3 chip, 2MB/s high bandwidth, low power consumption, rapid response, goodbye to delayed lagging.3. External Antenna: USB Bluetooth adapter has an external 4dBi high gain antenna, stronger signal, longer distance, no barrier 100 meters transmission distance.4. Lossless Transmission: Bluetooth 5.3 adapter supports APTX lossless transmission technology, 44.1KHz high sampling rate, CD grade HiFi sound quality.5. Applicable System: 100M Bluetooth 5.3 adapter supports no drive installation, plug and play, compatible with for Win 8.1 10 11 operating system.Specification:Item Type: USB Bluetooth 5.3 AdapterMaterial: ABSBluetooth Version: 5.3Frequency Range: 2.4GHz (24022480MHz)Transmission Distance: 0100MInterface Type: USBOperating System: for Win 8.1, for Win 10, for Win 11.Package List:1 x Bluetooth Adapter1 x Instruction Manual