Specification BatteriesRequired : 1 Brand : Techkey BulletPoint1 : Plug & Play: No need to install drivers,Simply plug the USB wireless adapter into your computer, you can use it directly. It is not limited by the network and location,you can use Bluetooth function at any time. BulletPoint2 : Bluetooth 5.3 dongle: Upgraded Bluetooth dongle 5.3+EDR,Support Dual Mode (BR/EDR + Bluetooth Low Energy). Quick response and better anti-interference, say goodbye to delay. Easy to operate and enjoy wireless. BulletPoint3 : Fast data transmission: The Bluetooth receiver supports Enhanced Data Rate (EDR) technology with a maximum data transfer rate of 3MBit/s, greatly increasing the transfer rate to a range of up to 30 meters if there are no obstacles between the computer and the connected device. It allows you to achieve a fast, lag-free wireless data connection between your computer and Bluetooth devices. BulletPoint4 : Stability and anti-interference: This upgraded Bluetooth 5.3 adapter adopt EDR technology and Bluetooth Low Power (BLE) configuration to reduce the loss of transmission efficiency caused by interference in the 2.4GHz band, Improves connection stability and reduces the possibility of signal interruptions. BulletPoint5 : Wide Range of Applications: Only Supports Windows 8.1/10/11,You can fully use the wireless Bluetooth to connect multiple devices simultaneously, such as Bluetooth speakers, headphones, headsets, keyboards, mice, Bluetooth printer and stereo headphone,etc.Not compatible with Mac OS, Linux,car stereo systems,XBOX,ps4 or TVs. BulletPoint6 : Up to 7 Devices Sync Connected - BT541 Bluetooth 5.4 dongle for PC Laptop supports up to 7 different types of devices to be connected and can work together at the same time without interfering with each other, Which means that you can listen to high-quality music while using the keyboard mouse or other devices. But If Bluetooth audio devices of the same type (such as speakers/headphones) are connected, only one of them can play music. BulletPoint7 : Warm Tips – 1. Ensure there is no Bluetooth built-in the computer. If there is, please be sure to disable all existing Bluetooth devices in "Device Manager" at first, then insert the adapter and try again. 2. If you have any question about the driver installation or product usage, you can contact our reliable customer service via Amazon Message, and we will reply to you quickly within 24 hours. Color : Black-5.3 Color1 : Black Color2 : Silver CompatibleDevices : Desktop CompatibleDevices1 : Tablet CompatibleDevices2 : Desktop CompatibleDevices3 : Keyboard CompatibleDevices4 : Smartphone CompatibleDevices5 : Any Game kit Bluetooth Controller ConnectivityTechnology : Wireless ConnectivityTechnology1 : bluetooth ConnectivityTechnology2 : usb ConnectorType1 : Micro USB ConnectorType2 : USB Type C ControlMethod : remote DataLinkProtocol : Bluetooth DataLinkProtocol1 : Bluetooth DataLinkProtocol2 : USB DataTransferRate : 33 megabits_per_second ExternallyAssignedProductIdentifier1 : 017229139480 ExternallyAssignedProductIdentifier2 : 0017229139480 ExternallyAssignedProductIdentifier3 : 00017229139480 ExternallyAssignedProductIdentifier4 : 0712885942176 FinishType : Abs GpsrSafetyAttestation : 1 HardwareInterface1 : usb HardwareInterface2 : bluetooth HardwareInterface3 : bluetooth_4_0 HardwareInterface4 : usb HardwareInterface5 : usb2.0 HardwareInterface6 : usb3.0 Hazmat1 : LITHIUM ION BATTERIES PACKED WITH EQUIPMENT Hazmat10 : CA_SmallLithiumIonBatteryWithEquipment Hazmat11 : CN_SmallLithiumIonBatteryWithEquipment Hazmat12 : IT_SmallLithiumIonBatteryWithEquipment Hazmat13 : ES_SmallLithiumIonBatteryWithEquipment Hazmat14 : IN_SmallLithiumIonBatteryWithEquipment Hazmat15 : MX_SmallLithiumIonBatteryWithEquipment Hazmat16 : SG_SmallLithiumIonBatteryWithEquipment Hazmat17 : AU_SmallLithiumIonBatteryWithEquipment Hazmat18 : BR_SmallLithiumIonBatteryWithEquipment Hazmat19 : TR_SmallLithiumIonBatteryWithEquipment Hazmat2 : UN3481 Hazmat20 : AE_SmallLithiumIonBatteryWithEquipment Hazmat21 : SA_SmallLithiumIonBatteryWithEquipment Hazmat22 : EG_SmallLithiumIonBatteryWithEquipment Hazmat23 : NL_SmallLithiumIonBatteryWithEquipment Hazmat24 : SE_SmallLithiumIonBatteryWithEquipment Hazmat25 : PL_SmallLithiumIonBatteryWithEquipment Hazmat26 : BE_SmallLithiumIonBatteryWithEquipment Hazmat27 : ZA_SmallLithiumIonBatteryWithEquipment Hazmat28 : IE_SmallLithiumIonBatteryWithEquipment Hazmat3 : II Hazmat4 : 9 Hazmat5 : US_SmallLithiumIonBatteryWithEquipment Hazmat6 : GB_SmallLithiumIonBatteryWithEquipment Hazmat7 : DE_SmallLithiumIonBatteryWithEquipment Hazmat8 : FR_SmallLithiumIonBatteryWithEquipment Hazmat9 : JP_SmallLithiumIonBatteryWithEquipment IncludedComponents1 : 1 x BT541 Bluetooth 5.4 USB Adapter IncludedComponents2 : 1 x User Manual ItemDisplayDimensions_Height : 2 inches ItemDisplayDimensions_Length : 4 inches ItemDisplayDimensions_Width : 4 inches ItemName : USB Bluetooth Adapter 5.3 for Desktop PC, Plug & Play Mini Bluetooth EDR Dongle Receiver & Transmitter for Laptop Computer Bluetooth Headphones Keyboard Mouse Speakers Printer Windows 11/10/8.1 ItemPackageDimensions_Height : 10.795 centimeters ItemPackageDimensions_Length : 1.7018 centimeters ItemPackageDimensions_Width : 9.398 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : bluetooth-network-adapters Manufacturer : Techkey/Shenzhen Denos Trade Co., Ltd. Material : Polycarbonate MaximumUpstreamDataTransferRate : 300 megabits_per_second ModelName : BT300 Bluetooth 2.0 - Bluetooth Adapter for Headset ModelNumber : BT-532-1.0 ModemType : cellular NumberOfItems : 1 NumberOfPorts : 1 PackageLevel : unit PartNumber : 16544 PowerPlugType : no_plug ProductDescription : USB Bluetooth Adapter 5.3 for Desktop PC, Really Plug & Play Mini Bluetooth EDR Dongle Receiver & transmitter for Laptop Computer Bluetooth Headphones Keyboard Mouse Speakers Printer Windows 11/10/8.1(grey) ProductSiteLaunchDate : 2023-01-11T08:00:00.000Z ShipsGlobally : 1 Size : Small SpecificUsesForProduct : business SpecificUsesForProduct1 : PC SpecificUsesForProduct2 : Tablet SpecificUsesForProduct3 : Smartphone SpecificUsesForProduct4 : Speaker SpecificUsesForProduct5 : Headphones StreetDate : 2019-02-15T00:00:01Z Style : Latest BT5.4-Tiny BT541 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TotalEthernetPorts : 1 UnitCount : 1 UnspscCode : 43211614 WarrantyDescription : 2 YEAR Manufacturer Limited WarrantyDescription1 : Hakimonoe products are tested and certified by the strictest labs in the world. We have BQB, FCC, IC, CE, RoHS, and many other certifications for most products. WarrantyDescription2 : 30-Day Money-Back Guarantee for ANY Reason: For 30 days after the date of purchase, return your undamaged Hakimonoe product and receive a Full-Refund for ANY reason. WarrantyDescription3 : 12-Month Warranty for Quality-Related Issues: For 12 months after the date of purchase, we take care of all quality-related issues with a REPLACEMENT. Reminder: Be sure to use your product as directed.