Sanwa Supply Bluetooth headset dual microphone noise (with cancellation) MM-BTMH68BK

[About clocks that synchronize time via radio waves] The function of clocks that synchronize time via radio waves only works in the Japanese area. Please be careful. Dual microphone noise cancellation allows your voice to be heard even in low voices. *Dual microphone noise cancellation → Noise cancellation is performed by collecting audio with two microphones: a microphone for calls (one that picks up your own voice) and a microphone that picks up environmental sounds. Since the microphone is placed close to your mouth, it has excellent sound collection, and your voice is transmitted clearly even when wearing a mask. The soft ear hooks reduce the burden on your ears when wearing them, making them easy to use for long periods of time. Earpieces come in three sizes: S, M, and L, so you can choose the size that fits your ears. It can be attached to either the left or right ear.