Bluetooth Knit Headband Sweatband Wireless Headphone HeadsetDarkGrey BDZ

Product details of Bluetooth Knit Headband Sweatband Wireless Headphone HeadsetDarkGrey DescriptionSpecification:Color: Dark GreyBluetooth basic parameters:Bluetooth Version: V3.0Operating range: 10 metersBattery capacity: 180 mAhFrequency range: 20 - 20 kHzSensitivity: 95 DBImpedance: 32 ohmSpeaker size: 32 mmCharging time: 2 hVoice continuous talk time: 4 - 6 hoursBluetooth music play time: 3 - 6 h (70% volume state)1*User Manual
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