Specifications:The wireless earphone has bluetooth-compatible 5.0 chip, which has fast and stable connection.With ergonomic in-ear design, it is comfortable to wear.It has mini compact size, which is easy to store and carry.Excellent noise reduction microphone provides clear phone call.Item Name: Wireless EarphoneMaterial: ABSQuantity: 1PcBluetooth Version: 5.0+EDRTransmission Space: 10mBattery Capacity: 50mAh (Included)Supported Protocols: HEP/HSP/A2D/AVRCPCharging Time: 1-2 HoursMusic Time: 4-6 HoursStandby Time: 100-150 HoursFrequency Range: 2.40-2.48GHzDistortion Rate: 1%Frequency Response: 20Hz-20KHzSensitivity: 80dBFeatures: Wireless, Rechargeable, Mini, In-earSize: 2.2cm x 1.8cm x 1.2cm/0.87" x 0.71" x 0.47" (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.The wireless earphone is not true wireless stereo earphone, which can not connected with 2 phones simultaneously.Package Includes:1 x Wireless Earphone1 x USB Charging Cable1 x User Manual