Description:With bluetooth-compatible 5.1 chip, the bluetooth-compatible earphone has high speed and stable transmission, bringing strong ability of anti-interference. It is convenient to use the earphone, which supports smart-touch.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.Made of premium ABS and electronic component material, the wireless earphone is reliable and durable.Length of the charging box is 8cm, width is 4.5cm and thickness is 3cm.It is suitable for you to use it for home, office, travel, sport, etc.Item Name: Wireless EarphoneMaterial: ABS,Electronic ComponentSensitivity: 103dBFrequency Response: 20Hz-2.48GHzImpedance: 32Transmission Distance: 10mBluetooth Version: 5.1Standby Time: 120 HoursCharging Compartment Battery Capacity: 400mAh (Included)Speaker Diameter: 13mmEarphone Battery Capacity: 35mAh (Included)Endurance Time: 4-5 HoursSize Details: Charging Box Size: 8cm x 4.5cm x 3cm/3.15" x 1.77" x 1.18" (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:2 x Wireless Earphones1 x USB Charging Cable1 x Charging Box