USB Bluetooth 5.0 Adapter CM390 with 20 Metre Range and Multi-Protocol Support

This USB Bluetooth adapter provides a straightforward way to add Bluetooth 5.0 capability to a computer or laptop that does not have built-in wireless connectivity. It is designed for users who want to connect Bluetooth audio devices or supported peripherals without replacing their existing hardware. The adapter supports a range of protocols including A2DP, H2DP, HSP, AVRCP, and HID, covering common audio streaming and human interface device functions. With a stated transmission distance of up to 20 metres in a barrier-free environment, it offers useful flexibility for placement within a room. The compact dimensions of 114mm x 102mm x 8mm mean it takes up minimal space when plugged into a USB port. Supplied as a single adapter unit, the model CM390 is a practical accessory for adding Bluetooth functionality where it is needed.

Features and Construction

The adapter is built around Bluetooth version 5.0 and supports several widely used protocols. Its physical size and single-unit supply make it a simple addition to a desktop or laptop setup. The following sections outline the key material and size considerations based on the available product information.

Material and Build

No specific housing material is stated in the source text. The adapter is a compact electronic device measuring 114mm x 102mm x 8mm, which indicates a slim form factor suitable for plugging into a standard USB port. The model designation is CM390. As a USB Bluetooth adapter, it is intended for direct connection to a compatible host device. No additional casing or material details are provided in the product information.

Size and Practical Fit

With dimensions of 114mm x 102mm x 8mm, the adapter is small enough to remain plugged into a laptop or desktop without causing significant obstruction. The 8mm thickness suggests a low-profile design that sits close to the port. The stated transmission distance is up to 20 metres in a barrier-free environment, giving users room to move while maintaining a connection. Walls, furniture, and other physical obstacles may reduce this range in practice. No weight is specified in the source text.

Uses and Placement

This adapter is suited to adding Bluetooth audio and peripheral connectivity to computers and laptops. It can be used in homes, offices, or similar environments where a USB port is available. The supported protocols determine which types of devices can be connected. The sections below describe common event and everyday use scenarios.

Event or Professional Use

In a workplace or presentation setting, the adapter can connect Bluetooth audio devices such as headphones or speakers to a computer. Support for A2DP and H2DP allows audio streaming, while HID support enables compatible input devices. The 20 metre barrier-free range may be useful in a meeting room or open office, provided there are no major obstacles. No specific professional certifications are stated. The adapter is supplied as a single unit, so multiple rooms would require separate adapters.

Everyday Home Use

At home, the adapter can add Bluetooth connectivity to a desktop PC or laptop for listening through wireless headphones or speakers. It supports AVRCP for remote control functions and HSP for headset use. The compact size means it can stay plugged in without taking up much space. The 20 metre barrier-free range allows some freedom to move around a room. As with any wireless device, performance may vary depending on the environment. No driver or software details are provided in the source text.

Benefits and Buying Value

The main benefit of this adapter is the ability to add Bluetooth 5.0 functionality to a computer without internal upgrades. Its protocol support covers common audio and input device needs. The compact dimensions and single-unit supply keep the purchase straightforward. The sections below discuss reuse and maintenance considerations and reasons to choose this product.

Reuse and Low Maintenance

The adapter is a reusable device that can be moved between compatible USB ports or computers as needed. No specific maintenance instructions are provided in the source text. As with most electronic accessories, keeping it dry and free from physical damage is advisable. There are no stated consumable parts or replacement schedules. The single-unit package means there is no additional packaging to manage beyond the adapter itself.

Why Choose This Product

This adapter offers Bluetooth 5.0 connectivity with support for A2DP, H2DP, HSP, AVRCP, and HID protocols. Its 20 metre barrier-free transmission distance provides flexibility for connecting devices within a room. The compact 114mm x 102mm x 8mm size makes it easy to leave plugged in. Model CM390 is supplied as a single adapter. For users who need to add Bluetooth audio or peripheral support to a USB-equipped computer, this adapter provides a focused solution without unnecessary extras.