This image shows the Model--MN-90 Wireless Neckband. 

Here's some information about this product for 

shopping:
Features:
It includes an internal microphone for hands-free calling, noise cancellation, volume control, and song switching. 

Design:
The neckband has a magnetic design for easy storage and can be worn like a necklace when not in use. 

Battery Life:
The MN-90 offers a long battery life of up to 10 hours of music time and 200 hours of standby time, with quick charging capabilities. 

Availability:
You can find this product online through various e-commerce platforms like SM Collection and other electronics retailers in Bangladesh.