Poly wired headset BlackWire 8225 connection binaural noise canceling (old model) USB-C

[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. Equipped with Acoustic Fence technology, the flexible noise-canceling microphone shuts out surrounding voices and noise. Optimize audio hearing and quality with 3 levels of advanced hybrid active noise cancellation (ANC) Prevent colleagues from talking to you by letting others know you're on a call with a busy indicator Enhanced bass response delivers consistently great audio for both calls and media playback USB-C terminal connection model