Brand: CelebratBluetooth: YesMicrophone: Microphone PresentVolume Control: Volume Control PresentItem type: TWS Bluetooth EarphoneBluetooth version: 5.0Color: BlackTransmission distance: ≥10mMicrophone sensitivity: -93dB±3dBBattery capacity: Lithium battery 3.7V/30mAhDrive unit: Ф6mmImpedance: 16Ω±15%Rated power: 5mWTalk time: 4.5-5HPlay time: 4.5-5HEarphones weight: 3.6g x 2Charging case:Input: 5V/500mACharging time: 1.5HBattery capacity: 550mAhWeight: 25.8g