1、Long press 2 seconds to call Sir voice assistant, it is convenient and quick to talk with it to check the weather, ask for navigation and make a phone call. 2、It can be used with Bluetooth, and it is compatible for Android/IOS/Windows systems for any mobile phone, tablet or computer. 3、Constant capacity with process upgrade, upgrade the mini body does not take up space, compact and portable for storage. 4、Magnetic induction storage box, no need to press hard, easily open the box, significantly increased user experience. 5、Bluetooth earbuds don't have much burden on the ear and the size is suitable for most people to wear. 1 x Charging Box2 x Headphone1 x Connect Cable1 x Manual Condition: 100% Brand NewItem Type: EarphonesMaterial: ABSColor: WhiteApplicable Distance: Approx. 10m/ 32.8ftWeight: Approx. 71.0g/ 2.5ozBluetooth Version:  5.0Earphone Capacity: 30mAhCharging Box Capacity: 300mAhPower Input: DC5VWorking Time: 3 HoursThe Charging Box Can Charge the Headphones: 3-4 TimesSupport Protocol: HSP/HFP/A2DP/AVRCP