Bluetooth Stereo Earphone Double Ear Call Twins Double Earbuds Music Headset With Charging Box For all Smartphone.☎☎Specification:Bluetooth version: 5.0Bluetooth scheme: BES schemeTransmission distance: outdoor straight line distance of 15-20 metersHorn data: composite membrane aluminum ring,0.3-0.5 milliwatts, frequency response 100HZ-10KHZUse time: single ear 3-4 hours, double ears 2-3 hours.One ear standby 60 hours, two ears waiting for 40 hoursCharging time: headphones 1-2 hours, charging bin 1-2 hours.Package Includes:NW M9X TWS wireless Bluetooth earphones with charging box1 x USB cable1 x Manual
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