Specifications:The connection distance is up to 35 feet, so there is no need to worry about interruption in listening and control and you can get 2 times the transmission speed plus a more stable connection without losing signal or music.You can automatically pair this device with the bluetooth-compatible device seamlessly without any problems and within a few seconds, you will enter the joyful world of music.Unique stereo sound quality and CVC8.0 digital noise reduction technology can provide you with perfect sound and feel more realistic music.The compact and lightweight magnetic charging box is equipped with a 400mah large-capacity battery, so you can charge it anytime and anywhere.This wireless headset can last for more than 4 hours of playing time on a single charge, and the compact charging box can be used for an additional 24 hours.The earplugs and charging case is waterproof, which is very suitable for gymnastics and sweating.LED display can clearly see the power of each earphone and charging box, without worrying about power failure.Moreover, the box is small and can be placed in a pocket, bag and wallet, etc.Equipped with earplugs of different sizes to make your ears comfortable, so that you will not feel uncomfortable wearing headphones for a long time, which is ideal for running, jogging, cycling, and exercising in the gym .Item Name: bluetooth-compatible Wireless HeadsetMaterial: PlasticBluetooth Version: 5.0Noise Reduction Version: CVC8.0Frequency Range: 2402MHz to 2480MHzConnection Distance: 10-15mHeadphone Battery Capacity: 40mAh(Included)Charging Box Battery Capacity: 400mAh(Included)Headphone Playback Time: 3-4 HoursCumulative Playing Time: about 24 Hours(with Charging Box)Headphone Charging Time: 40-50 MinutesCharging Box Charging Time: 1-2HoursFeatures: Automatic Pairing Technology, Large-Capacity Battery, Waterproof, Equipped with EarplugsSize: 5cm x 4cm x 3cm/2" x1.6" x 1.2" (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 Wireless Headphones1 x Charging Box1 x Charging Cable2 Pairs of Earcaps1 x User Manual