Description:Bluetooth 5.1 chip brings high speed and stable transmission, which has strong ability of anti-interference. Smart-touch operation is convenient to use.Dynamic speaker brings stereo and heavy bass sound effect, providing you excellent listening experience. It is comfortable to wear the earphone with ergonomic in-ear design. With large capacity battery, the wireless earphone can work for a long time. IPX7 waterproof level makes the earphone can be used for sports, shower even in rainy days.Made of premium ABS and electronic component material, the wireless headphone is reliable and durable.Length of the charging box is 10cm, width is 8cm and thickness is 3.5cm.It is suitable for you to use it for home, office, travel, sport, etc.Item Name: Wireless EarphoneMaterial: ABS,Electronic ComponentWaterproof Grade: IPX7Charging Interface: Type-CBluetooth Version: 5.1Charging Compartment Battery Capacity: 2400mAh (Included)Earphone Battery Capacity: 50mAh (Included)Frequency Response Range: 20-20000HzOperation Mode: Smart-touchSize Details: 10cm x 8cm x 3.5cm/3.94" x 3.15" x 1.38" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Charging Box4 x Wireless Earphones1 x USB Charging Cable1 x User Manual