Oxhorn Bluetooth 5.4 V5.4 USB Wireless Dongle Support Bluetooth speakers, printers, headphones, headsets, keyboards, mice Support: Win7/8/10/11 Black FEATURES: Bluetooth 5.4 supports higher data transmission without needing a direct connection, ideal for smart home devices and wearables. Allows up to 7 devices to connect simultaneously, enhancing user experience for items like headphones and smartwatches. Optimizes audio transmission for a more immersive experience, especially in headphones and gaming devices. Improves file transfer speed, boosting efficiency for larger data transfers. Increases signal stability and interference resistance, ensuring stable connections over longer distances. Enhances energy management, lowering power use and extending battery life. (All comparisons are with Bluetooth version 5.3 and earlier) SPECIFICATIONS: Bluetooth 5.4+EDR, compatible with Bluetooth 2.0/2.1/3.0/4.0/5.0, Dual-mode Bluetooth transfer, support Bluetooth voice data Can work with 7 devices at the same time. Faster discovery speed, low energy consumption EDR data rate up to 3Mbps, Supports A2DP stereo playback Support Bluetooth speakers, printers, headphones, headsets, keyboards, mice, etc. Compact design for safe travel with your laptop. CLASS 2 Power Standard, up to 20 meters (in open space) System Support: Win7 / Win8 / Win10 / Win11 (plug&play with internet connection) Color: Black What’s in the package: 1 x USB Bluetooth 5.4 Wireless Dongle