Specifications:Once you open the charging compartment, you can automatically pair this earphone with your phone without any problems.The unique sound quality and CVC8.0 noise reduction technology can provide you with perfect sound, so you can feel more realistic music.This compact and lightweight charging box is equipped with a 2000mah large-capacity battery, so you can charge it anytime and anywhere.LED power display can clearly see the power of each earphone and charging box, without worrying about power failure.This headset has a built-in high-sensitivity touch screen, you only need to touch it gently, and then it will immediately respond, which is very unique and practical.Equipped with earplugs to make your ears comfortable, so that you will not feel uncomfortable wearing headphones for a long time.It is ideal for running, jogging, cycling, and exercising in the gym .Item Name: EarphonesBluetooth Version: 5.1Noise Reduction Version: CVC8.0Working Distance: Within 10mEach Earphone Battery Capacity: 50mah(Included)Charging Compartment Battery Capacity: 2000mAh(Included)Automatic Power On: SupportAutomatic Matching: SupportBattery Life: about 220 Hours in Total(Used with Charging Box)Talk Time: about 180 Hours in Total(Used with Charging Box)Headphone Charging: about 40 TimesCharging Compartment Input Current: 5V1AControl Method: Touch ControlFeatures: Noise Reduction, Large-Capacity Battery, Touch Control, Power Display, Automatic MatchingSize: 11.2cm x 10cm x 4.3cm/4.41" x 3.94" x 1.69" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Pair of Earphones4 x Earplugs1 x Charging Compartment1 x USB Cable1 x User Manual