Wireless headset with Bluetooth 5.3 and a detachable microphone. - Bluetooth version: 5.3 - Microphone type: Detachable microphone - Model number: MM-BTMH61BK - Included items: Bluetooth headset Sanwa Supply I purchased these for business use and have them in stock, but I am selling them due to business downsizing. The quality of calls is high, and it doesn't mess up your hairstyle. I purchased a large quantity because it's the best product on the market. The main unit is clean and has no problems with use. The box, TYPE-C cable, ear pieces, and microphone are not included. Ear pieces can be purchased cheaply on Amazon. A single-ear headset with a detachable microphone, easy to use on the go. ■ Includes a unidirectional external microphone. ■ The headset itself also has a microphone, so you can switch between the headset microphone when you're out and the external microphone indoors, depending on your needs. ■ The external microphone can be moved and adjusted to your preferred position. ■ The microphone is positioned near your mouth, allowing for comfortable calls. Wireless headset with no obstructing cables Because it connects via Bluetooth, there are no cables to get in the way, and you can continue your call even if you move away from your desk during a call. There are volume buttons on the main unit, so you can control the volume with your hand. Unidirectional external microphone included A unidirectional external microphone is included. Attaching it to the headset brings the microphone closer to your mouth, improving sound collection and making calls easier. Calls are possible without the external microphone The headset itself also has an omnidirectional microphone. You can use the external microphone when you want to concentrate on a meeting in the office or at home, and use only the headset when you are out or listening to music, depending on the situation. The position of the external microphone can be adjusted. The external microphone has a flexible arm, so you can freely adjust it to a comfortable position. Multi-point support It supports multi-point, so you can answer calls on one headset even if you receive a call on either of two devices. Can be used on either ear By rotating the ear hook, you can wear it on either your left or right ear.