This is a wireless headset for one ear from Logicool (Elecom). I used it regularly, but my lifestyle has changed and I no longer need it, so I'm offering it for sale in the hopes that someone else can use it. * Doesn't block your ears, so you can hear the surrounding sounds. * Ear hook prevents it from falling. * Volume buttons are physical buttons, making them easy to operate. * Stable operation, including recognition with the smartphone and standby for connecting to two devices. I was able to connect it to my smartphone. I have confirmed that it works for music and phone calls after connecting. Charging was 100% even after 30 minutes of being connected to the smartphone. Why not use it as a spare to keep in your car? USB charging uses the standard Type-B terminal (trapezoidal terminal). The box is not included. It will be wrapped in cushioning material for shipping. The following is a text automatically generated by Mercari: --------- Bluetooth 3.0 compatible wireless headset with approximately 5 hours of use. - Model Name: LBT-HS320 - Bluetooth Version: Bluetooth 3.0 - Supported Profiles: A2DP, HSP, HFP - Color: Black - Usage Time: Approximately 5 hours - Charging Method: USB charging