ESSAGER TWS Bluetooth Earphone HiFi Stereo Sound HD Calling Wireless Headset - PurpleBeautiful pebble shape charging case,light and portable,can be easily put into your pocketSemi-in-ear design,the ergonomic design provides a comfortable,secure fit and effectively disperses pressureHiFi stereo sound echo in your ears,provides rich,balanced sound and crisp audioUpgrade Bluetooth 5.3,nearly zero latency,the connection is faster and more stableOne-step pairing,supports the independent use of a single earphoneDesigned with charging LED indicator,the charging status is clearly visibleSmart touch control at your fingertipsSpecification:Material: ABS+PCHeadphone type: semi-in-earInterface: Type-CBluetooth version: 5.3Product chip: JL6983D2Frequency response range: 30Hz - 20KHzCharging time: about 1.5 hours for earphones and about 2 hours for charging boxBluetooth receiving distance: 10 meters (straight line distance)Standby time: 30 hoursListening/talking time: about 3-4 hoursBattery capacity: Headphones 30mAh,Charging box 300mAhCompatible devices: Android,for Apple and other playback devices that support Bluetooth functionProduct size: 50.2*46mmProduct weight: 33.5gProduct certification: UN38.3,MSDS,drop test,sea shipping,air shippingPackage included:1 x Pair of Bluetooth Earphones1 x Charging Case1 x Type-C Charging Cable1 x English and Chinese User Manual