AFTERSHOKZ OPENCOMM SLATE GREY Purchased as a new, unused item from Treasure Factory. Opened to check the contents. Shokz (formerly AfterShokz) Business Model 【Ideal for telework】Equipped with a DSP noise-canceling microphone, it seems there is no delay, and even a soft voice can be heard clearly without any problems during calls. It features a boom microphone with an adjustable angle to suit the user, and it can be folded back when not in use, so it won't get in the way. The titanium body is sturdy and can be tossed directly into a business bag pocket without any issues. It won't interfere with jobs that involve light physical activity. It doesn't hurt your ears even if you wear it all day. 【Up to 16 hours of continuous talk time】OpenComm, specialized in professional call functions, is equipped with an unprecedentedly long-lasting battery, enabling up to 8 hours of music playback and 16 hours of talk time on a single full charge. 【Quick charging】Even if the battery runs out during a video conference, it's okay. It's equipped with quick charging, allowing for up to 2 hours of talk time with just a 5-minute charge. *If pairing fails, please refer to the following steps: 1. Reset your earphones. 2. Charge your earphones for about 10 minutes. 3. Delete the pairing information of this product from your smartphone and PC, and restart them. 4. Pair your earphones again.