100% brand new and high quality Active Noise Cancellation: Isolate the sound and listen to it, using a dedicated noise reduction chip, through receiving and analyzing the additional noise, the opposite signal is generated in the earphone to cancel it. Ergonomic Design: Exercise and fitness, can not be thrown away, you can enjoy a comfortable experience even wearing headphones for a long time, forming a triangular stable support with the ears, and still close to the ears when strenuous exercises. Shocking Sound Quality Experience: Feel the shocking sound quality experience, can analyze the audio excellently, and present the original sound. Small Enough: Wear it for a day without getting tired, light per ear, in-ear design, no weight-bearing feeling. Super Battery Life: Let the ears enjoy a little more, TYPE-C interface input charging and charging, charging compartment supports power display. Material: Plastic Color: Yellow, Grey Product Dimension: approx. 10x10cm/3.94x3.94inches Net Weight: 90g/0.20lbs Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 1PC Wireless In-ear Headphones