Brand new, unopened. I am selling it because I didn't use it. ● High sound insulation is achieved with noise-canceling function & low-rebound ear tips (included) The noise-canceling function of this unit reduces noise by generating a high-precision signal that cancels out ambient noise collected by the built-in microphone. You can enjoy clear, high-quality sound even in noisy environments such as airplanes and trains. ● Equipped with a 10mm diameter high-quality sound driver, enhancing the noise-canceling function, and achieving powerful & clear sound To enhance the noise-canceling function, a 10mm diameter driver unit is installed. High-magnetic neodymium magnets are used as the material to achieve high-quality sound, and it reproduces powerful and clear sound with a good balance from low to high frequencies. ● Equipped with touch control that can be operated with a light touch With touch control, which operates the left and right main units with a light touch, basic operations such as power on/off, volume adjustment, play/pause/skip forward/skip back are possible. It is also easy to turn on and off the touch & talk function, which allows you to have conversations even with the earphones on by using the noise-canceling function and taking in external sounds. ● Equipped with a touch & talk function that allows you to have conversations with the earphones on With the touch & talk function, when you need to have a conversation while shopping or in an unexpected situation, you can lower the volume with one touch and take in external sounds with the microphone, making it easier to have a conversation. ● Equipped with auto on/off & auto connect function that automatically turns on/off and wirelessly connects Once paired with a device, the earphones will turn on and automatically connect wirelessly just by taking them out of the charging case. Specifications Type: Dynamic type Communication method: Bluetooth standard Ver. 5.0 Output/Maximum communication distance: Bluetooth standard Power Class 1/approx. 10m Waterproof performance (main unit only): IPX4 Battery life ・Earphones: approx. 8 hours ・Charging case: 3 times (approx. 24 hours) Charging time ・Earphones: approx. 2 hours ・Charging case: approx. 3.5 hours Charging method: USB power Type-C Weight: Earphones: approx. 7.1g Accessories: Low-rebound ear tips S, M, L each 2 pieces, ear tips S, M, L each 2 pieces, charging USB Type-C cable, charging case