This is a slim and stylish wireless headset. I personally found it very useful that I could answer calls with a single touch of the button on the left side. - Brand: ELECOM - Color: Black - Design: Slim design - Function: Wireless - Features: Rotatable microphone - Uses: Business, gaming, music Thank you for viewing. Feel free to ask any questions or negotiate a price reduction. I bought this because I forgot my earphones on a business trip, and I've only used it a few times. However, it was purchased about 3 years ago, and the synthetic leather on the right earpad shows some deterioration. Therefore, I am selling it as junk, so please be aware of this. Operation has been confirmed. The instruction manual was originally only provided online. I can include a charging connector if you'd like, from another product. If you don't need it, I'll reduce the price by 200 yen. Please let me know if you need it. Thank you.