Product features:Using a true 5.4 Bluetooth-Compatible chip, compliant with Bluetooth-Compatible 5.3 technical specifications, LMP: 13. X, BLE/EDR dual-mode low-power transmission.Longer transmission distance: 150m ultra long transmission distance (unobstructed), upgraded antenna, strong signal.More stable transmission rate: 3Mbps transmission rate, providing high-speed file and audio data transmission.Driver free use: Supports plug and play without the need for CD installation, making it convenient and simple.Ultra low latency high-speed connection, intelligent sleep wake-up energy-saving, 24 bit CRC verification to resist interference, adaptive frequency hopping to reduce crosstalk.Downward compatibility with Bluetooth-Compatible 2.0, Bluetooth-Compatible 2.1, Bluetooth-Compatible 3.0, Bluetooth-Compatible 4.0, Bluetooth-Compatible 5.0, Bluetooth-Compatible 5.1, Bluetooth-Compatible 5.3 and other specifications.USB 2.0 interface (universal USB 3.0).It can connect 7 devices simultaneously, with strong compatibility. One adapter can meet multiple needs.Technological upgrade, one-time connection, automatic reconnection for subsequent use, no need for secondary pairing.Product Name: USB Bluetooth-Compatible AdapterBluetooth-Compatible version: 5.4Transmission distance: 0-150MInterface type: USBPackaging size: 5.5 * 8 * 1.6CMWorking frequency: 2.402GHZ-2.480GHZRated voltage: DC 5VCompatible system: Windows 7/8.1/10/11Packaging includes1 * Bluetooth-Compatible adapter