Specifications:The wireless earphone has bluetooth-compatible 5.0 chip, which has low power consumption and fast and stable connection.It has waterproof level of IPX7.With ergonomic design, it is comfortable to wear.It is equipped with large capacity battery, which has long standby time.Item Name: Wireless EarphoneMaterial: PCBluetooth-compatible Version: 5.0Input Voltage: 5VFrequency Response: 100Hx-8KHzSignal to Noise Ratio: 70DBWaterproof Level: IPX7Earphone Battery Capacity: 50mAh (Included)Charging Box Battery Capacity: 2000mAh (Included)Standby Time: about 4 HoursTalk Time: about 4 HoursTransmission Space:10mFeatures: Wireless, Waterproof, Comfortable to WearCharging Box Size: 7.5cm x 4.5cm x 2.5cm/2.95" x 1.77" x 0.98" (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 Earphones1 x Charging Box1 x Charging Cable4 x Ear Caps1 x User Manual