USB Adapter Bluetooth-compatible 54 Dongle Adaptador compatible with PC Wireless Mouse Keyborad Laptop Music Audio Receiver Transmitter Note compatible with Win8.1/10/11 driver-free, plug and play, compatible with Win 7 need to install drivers This product is not supported on Mac OS/IOS system. Bluetooth-compatible 5.4 adapter 5.4 Bluetooth-compatible, dual-mode and dual-channel, Compatible with Bluetooth-compatible 2.0, 3.0, 4.0, 5.0, 5.1 and 5.3 specifications. Intelligent low-power chip, RF transceiver, providing lower delay, flexible and powerful Bluetooth-compatible application. Support Cass2 Power level 20 meters distance (in open environment) Support Bluetooth-compatible 5.4 dual-mode specification (LMP 13.X true Bluetooth-compatible 5.4 standard) Support USB2.0/3.0 interface. Support multiple devices to connect at the same time (up to 7 devices can be connected) Working temperature -20 to 70℃ Operating system support: Windows 8.1, 10, 11 (driver-free, plug and play) windows7 installation drivers can be used. Support protocols: HFP/HSP (hands-free phone/headset) A2DP/ AVRCP (stereo music) HID/HOGP (keyboard and mouse) /ACC. Android smart phone, etc. Feature 1.Transmission distance: 10-20m 2.Transmission rate:3Mbps 3.Chip:BR8654 4.Windows 8.1/10/11 driver-free, plug and play, win7 need to install the driver Compatible with 5.3/5.2/5.1/5.0/4.0/3.0/2.0 and other Bluetooth-compatible versions 5.Unique appearance design, silicone film light up at the end 6.Lower power consumption, lower latency, higher definition sound quality 7.Win8.1-11 driver-free, plug and play, support Win7 system 8.Connect once, connect back automatically 9.Support multiple devices connecting at the same time 10.Wide compatibility (Bluetooth-compatible headset/speaker/Bluetooth-compatible mouse/keyboard/Bluetooth-compatible handle/printer/Android mobile phone) 11.Built-in antenna, longer distance and more stable 12.Support A2DP/SBC/AAC/HSP/AVRCP/HID and other protocols. Package Included 1 x USB Bluetooth-compatible Adapter 1 x User Instructions Note: 1.We don't offer retail package,but we will pack it well becompatible withe shipped out. 2.Please allow 0-1cm error due to manual measurement. plz make sure you do not mind becompatible withe you buy. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!