Black wireless headset with battery level indicator. Bluetooth. Can be used on either the left or right side. A 1.5-hour charge allows for up to 10-12 hours of talk time or music playback, with a standby time of 400 hours. I found this in my closet while decluttering. I decided to list it for sale rather than throw it away. I had forgotten I even owned it. I probably only used it 2-3 times. Regarding connectivity: I was able to connect to PC, Android, and iPhone without any problems. (See images 12, 13, and 14) In addition to microphone and connection tests, I also made a phone call using a smartphone, and it worked without any issues. Image 9 shows a side view, and although it's difficult to see, it's the volume adjustment button. Image 17 shows the back of the box. Please refer to it for the product specifications. ----------------------------------- [Defect] Images 4 and 5. These are the speaker parts. Although they are not the type that goes directly into the ear canal, I used a small amount of kitchen disinfectant alcohol and cleaned them with a cotton swab and toothpick, which resulted in slight scratches. Please check the images. ----------------------------------- Also, as shown in image 11, there are numerous shallow, linear scratches on the bottom of the case. Please refrain from purchasing if you are concerned. Thank you for looking.