SPECIFICATIONS

Model Number: CM591/CM390

Bluetooth Standard: Bluetooth v5.3

Certification: CE

Certification: FCC

Package: Yes

Certification: CE, FCC, SRRC, TELEC, UKCA, IC

Product Name: Bluetooth Adapter, USB Bluetooth 4.0, USB Bluetooth 5.0, USB Bluetooth 5.3, Bluetooth Dongle

Type: Bluetooth Computer Adapter,USB Dongle

Function: Bluetooth Adapter for Computer,Bluetooth Adapter for PC

Usage 1: USB Bluetooth Receiver,Bluetooth Dongle 4.0,Bluetooth Dongle 5.0,Bluetooth Dongle 5.3

Usgae 2: Bluetooth Adapter,Wireless Bluetooth Adapter

Compatible with: Bluetooth 5.4 5.3 / 5.0 (only for win7/ win8.1/win10/win11)

Usage 4: Wireless Transmitter

Usage 5: USB Receiver,Adapter Bluetooth

Feature: Bluetooth Adapter for Wireless Mouse/Keyborard/Headphone/Stereo

Bluetooth protocol - 5.3: HSP, A2DP, AVRCP, DID, GAVDP, IOPT, PAN, HID

Bluetooth protocol - 5.0: HSP, A2DP, AVRCP, GATT, DID, GAVDP, DUN, IOP, ANU, SDP, HID

Transmission distance: 20m

Operating frequency: 2.400GHz-2.4835GHz

Bluetooth Standard: Bluetooth 5.4/5.3 / 5.0

Compatible Systems - Bluetooth5.3: Windows 8.1/10/11

Compatible Systems - Bluetooth5.0: Windows 7/8.1/10/11

Note:

Q: If your Bluetooth adapter does not work (there is a driver error problem), please use the following methods to solve it.

A: Since Windows 10 system has Bluetooth function which is the "Intel(R) Wireless Bluetooth" in this image，

So you need to right-click to disable the Bluetooth: "Intel(R) Wireless Bluetooth" and then re-plug our 5.3 Bluetooth adapter to try，

If you have other questions, you can contact our online customer service to solve the problem.

 

The USB bluetooth adapter can only be plugged into your desktop or laptop computer, and cannot be used on other devices such as a car.

Before using the product, please disable the Bluetooth of the computer itself, and uninstall the existing Bluetooth driver of the computer, and then install the driver of this product.

Bluetooth 5.4 Adapter

Enjoy wireless life fastly

Major Breakthroughs in Technology

 

The latest Bluetooth 5.4 technology, optimizes the transmission delay and connection defect problems of the old Bluetooth 5.0

Multiple Bluetooth Versions

Bluetooth 5.3, backward compatible with 5.1/5.0/4.0 devices

Diver-free for Win8.1 and Later

Only use on Windows computer

Save your USB Ports

Connect 5 devices simultaneously

Bluetooth Connection

Enjoy wireless life

Use for Wireless Keyboard and Mouse

Enjoy wireless working and game

Use for Data Tranfer

Transfer file instantly via connection

Up to 20M Transmission Distance

Faster and more stable transfer

Strict Safety Control

Each UGREEN product has undergone layers of security testing and passed multiple international security

Clear Indicative Status

Keep lighting when it works

Small & Anti-lost

Product Specifications

Package Display

Q: My PC Can't use this CD, how do I install the driver?

A: If your PC does not have a CD driver, please kindly download the driver from UGREEN official website. it is for free.

Note: Before using the product, please disable the Bluetooth of the computer itself, and uninstall the existing Bluetooth driver of the computer, and then install the driver of this product

Q: Does the Bluetooth dongle support TV?

A: Sorry, this device will only work when plugged into supported Windows. Even though TVs, home theater equipment, and stereos have USB ports, they don't have the necessary drivers to support this adapter.

Q: Why do I get a driver error when I install the driver?

A: Maybe the built-in Bluetooth on the computer causes a conflict. Please disable the previous Bluetooth first.

Tips:Connect 5 devices wireless via Bluetooth 5.0 dongle at the same time, but music streams to only 1 audio device at a time.

How do I install the driver for Windows?

a. To install the driver, visit the UGREEN website, search “CM390” and download the driver in the "Support" section

d. Open file "UB400_Driver.zip", click through the following “Windows” file and click on “setup.exe” and finish the installation

Q: Can the USB Bluetooth adapter connect to the same device at the same time, such as two earphones?

 

A: No, you can connect 5 devices at the same time, but they must be different types of devices.

Q: Does the USB Bluetooth adapter support voice calls?

 

A: If your Bluetooth headset has a microphone function, it supports voice calls.

 

Q: Can the USB adapter be connected to Gaming Controllers such as PS/XBOX?

 

A: It only supports connected PS4, X BOX ONE S and later series Gaming Controllers. Bluetooth devices all have latency issues（Latency<250ms）, If you need to connect game controller devices and have requirements for latency,

We recommend that you use a wired connection or a dedicated 2.4g adapter to achieve ultra-low latency and stability .

Q: Are BLE low-energy devices supported?

A: It is not compatible with BLE low energy Bluetooth devices in the Win7 system, but can be supported by Win8.1 and later systems.

1. Is worldwide shipping available for all products?

Yes. Thanks to customer like you, we have expanded our borders. You can now enjoy our products everywhere.

2. What are the estimated delivery time frames?

 All orders are estimated to be processed and then delivered around 7-12 business days after purchase. 

In case of uncommon logistics issues, it may take a few more business days. 

Feel safe your order is always in good hands and will make sure to be delivered safely to your address.

3. When will my order be sent out?

Orders are usually shipped 1-2 days after the payment was processed.

4. My order has not arrived yet.

If you notice your order is taking longer than expected, this is most likely due to an unforeseen logistic issue. Send email so we can provide you with further information on your order.

5. Is my payment safe?

All of our payments are managed through PayPal, one of the safest payment gateways available today. You are protected against fraud and information exposure.

6. I want to cancel my order.

Please send us an email within the first 24 hours after your purchase, only in this time frame we can make modifications to your order.

7. The product I received does not match the description. What can I do?

We are committed to customer satisfaction. Please send us a detailed email with your concern and we will get back to you as soon as possible with a solution.