LED Digital Display Earplug Neck Mounted Noise Reduction Stereo Headset With MicrophoneFeatures:Bluetooth version: Bluetooth V5.2 Transmission distance: 10 meters Life time: 200 hours Charging time: 1h fast charging Battery capacity: 800mAh rechargeable lithium battery Headphone function: adjust volume, answers calls, reject calls, hang up calls, insert memory card, voice assistant Headphone configuration: 10mm Wake up voice assistant: supportProduct Description:Built-in 800mA battery, Bluetooth range up to 10M Bluetooth connection. These Bluetooth earbuds use flexible and durable silicone neckbands, weighing 60g, which is 80% lighter than any other neckband earphones. You may even forget to wear them! Made of ultra-light silicon, it is easy to carry and comfortable all day long.Ensure a 100% comfortable fit, especially when you are jogging, biking, exercising, and staying at home or officePackage Included:1 earphone1 X USB data cable1 X Manual