This bluetooth-compatible earphones has a charging case, which can be used to extend the battery life of the headphones, can be used as a charging bank, and can also be used as a phone stand. What this bluetooth-compatible earphones can offer you is that it is easy to operate and can be automatically matched to your phone just by taking it out of the charging case. Made of PC, this product is durable and eco-friendly. There are two styles to choose; style 1 is earphone with touch operate function and breathing light; style 2 is earphone with F9-5 button and LED display function. It is suitable for business, game, music, walking, sport. Two headsets both carry bluetooth-compatible chip, and the upgraded bluetooth-compatible 5.0 chip can bring you faster and more stable transmission without inductive delay. Item Name: bluetooth-compatible Earphones Material: PC Color: Black, White Features: HiFi Sound, bluetooth-compatible 5.0, Noise Canceling Bluetooth Version: V5.0 Single Earphone Battery Capacity: 50mah Charging Case Battery Capacity: 2000mah Charging Case Output Current: 5V 1A Fast Charging Time: About 30 Minutes Version: 1 Earphone with Touch Operate Function and Breathing Light;2 Earphone with F9-5 Button and LED Display Function Size Details: Charging Case Size: 7.8cm x 5.4cm x 1.9cm/3.07" x 2.13" x 0.75" (Approx.) Single Earphone Size: 2.6cm x 1.4cm/1.02" x 0.55" (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 bluetooth-compatible Earphones 1 x Charging Case 1 x USB Cable 3 Pair of Earphone Cap