Noise Canceling Wireless Earphones - Brand: SONY - Model: WF-C700N - Color: Purple - Noise Canceling: Yes - Playback Time: 7.5 hours - Water Resistance: IPX4 Thank you for viewing. The following is a description from Amazon: Optimally controls the microphones on the left and right sides to generate reverse-phase sound that cancels out noise with high precision. With high noise canceling, you can immerse yourself in music even in noisy environments such as trains and buses, as well as in environments with many people, such as in the city or cafes. Furthermore, it also features natural ambient sound. The sound is well-balanced from high to low frequencies, and you can enjoy vocals and instrument sounds naturally and clearly. In addition, Sony's proprietary technology "DSEE" (*) complements the high-frequency range that tends to be lost in compressed sound sources within the headphones to the equivalent of CD quality. It reproduces compressed sound sources such as streaming playback, MP3, and Bluetooth transmission codecs with a wide range of good sound. * DSEE can be enjoyed by enabling the function from the "Headphones Connect" app. The main unit and case are designed to be compact. By reducing the protrusion from the ears, the wearing comfort is improved, and a smart wearing appearance is achieved. Comfortable wearing comfort that reduces fatigue even during long listening sessions is achieved. Furthermore, you can choose from lavender, sage green, and basic white and black, which use trendy muted colors, to match your fashion. "When noise canceling is ON, the main unit can be used for up to 7.5 hours, and a total of up to 15 hours (＊1) including case charging. Also, it supports quick charging, which allows 60 minutes of playback with a 10-minute charge (＊2). Furthermore, it is equipped with IPX4 water resistance (＊3), so you can use it without any problems even in sudden rain or sweat. ＊1 The completely wireless model includes case charging. The codec is AAC. When DSEE/equalizer is equipped, it is OFF, and all other functions are at initial settings. ＊2 The codec is AAC, noise canceling function is ON, DSEE / equalizer equipped models are OFF, and all other functions are at initial settings. ＊3 Headphone unit only, excluding the case. It protects the main unit functions against splashes from all directions. Excluding the sound guide tube (tube part of the sound outlet), ventilation holes, and microphone holes of this unit."