Noise reduction technology helps to prevent noisy sounds. They don't get tired even if they wear it for a long time; they are less likely to fall down and enjoy music. High quality stereo headphones and high quality drivers provide natural clarity and super bass. Item Name: bluetooth-compatible Earphones Material: ABS Plastic Bluetooth Version: 5.0 Bluetooth Chip: Jerry Headset Power: 55mA Charging Box: 450mA (Included) Listening Time: About 3 Hours Features:Portable, Weaving, Data Transmission, Durable Charging Box Size: 7.5cm x 4.3cm x 2.8cm/2.95";x 1.69";x 1.10";(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 Pair of Earphones 1 x Charging Box 1 x User Manual 1 x USB Charging Cable