LED digital power display, the remaining power of the charging cabin is clear at a glance, to avoid the embarrassment of suddenly running out of electricity. Built-in large-capacity battery, which can be charged immediately and fully charged, is suitable for a variety of scenarios, so that you can travel without worry. 5.0 lower power consumption is the core technology of headphones, adopt mini energy gathering cabin design, sensitive metal contact, which can be put and charged immediately. Specifications: Item Name: Wireless Earphones Material: ABS Bluetooth Version: 5.1 and 5.3 Single Ear Capacity: 50mA Charging Bin Capacity: 2000mA Battery: Built-in 2000mA battery (Included) Automatic Shutdown: Support Automatic Pairing: Support Endurance Time: Accumulated about 22 Hours (Need to Be Equipped with A Charging Box) Talk Time: 180 Hours (Need to Be Equipped with A Charging Box) Headphone Charging: About 40 Times Charging Box Input Current: 5V/1A Charging Method: Put The Earphone into The Charging Box And Cover The Lid, The Earphone Will Be Charged Automatically, The Earphone Will Light Up in Red When Charging, And It Will Go out After Being Fully Charged Magnetic Absorption Function: Magnetic Absorption Control Method: Touch Operation Applicable Products: For Mobile Phones, For Tablet, For Computers (For Android/IOS Systems Etc.) Features: TWS, Wireless, with Charging Box Size: 11cm x 10cm x 4 cm/4.33′ x 3.94′ x 1.57′ (Approx.)