M3 Bluetooth Headset Subwoofer TWS Bluetooth Headset

Product information:Product model: wireless bluetooth headsetSpecification: 62X40X27mmWorking voltage: 3.3V-4.2VBluetooth version: V5.1+EDRBattery capacity: 50mAh/280mAhUse time: 3-4 hoursStandby time: about 300 hoursSpeaker type: 8 cm copper ring dynamicTransmission range: 2.40GH2.48GHzSensitivity: 98db+3dbCommunication distance: effective distance 15 metersEar entry method: oblique entry to the ear to fit the contour of the ear Packing list：Wireless headset x1