Led Digital Display Power Bank Function Wireless Bluetooth Headset In-ear Headset 1500mah Charging Compartment Features: Built-in 1500mA battery, Bluetooth range can reach10-15M Bluetooth connection. These Bluetooth earbuds use a flexible and neckband. Equipped with the power bank function, you can charge your mobile phone while listening to songs. Made of-light silicon, it is easy to carry and comfortable all day long. Ensure a comfortable fit, especially when you are jogging, biking, exercising, and staying at home or office Product Description: Bluetooth version: Bluetooth V5.0 Transmission distance: 10-15 meters Use time: 5 hours Charging time: The ear compartment can be charged 10 times Battery capacity: 1500mAh rechargeable lithium battery Headphone functions: adjust volume, switchsongs, answercalls, reject calls, hang up calls, Bluetooth playback, Bluetooth connection,