True wireless sport headphones specially developed for serious /active runners with slim Design. With a Qualcomm® TrueWireless™ Stereo Plus-compatible smartphone, left and right units independently connect with the smartphone. This enables stable connectivity and low latency to let you enjoy music comfortably. It is even possible to use only one left or right unit while charging the other in the charging case. Newly designed shape and material for a comfortable fit. It doesn’t feel like it’s being forced into your ear. It suppresses landing noise and wind noise, so you can concentrate and run without stress. Open-type ear pieces are also provided to let you hear ambient noise while running.