Eye Cover Sleep Mask Comfortable Bluetooth HeadsetBluetooth 5.0 stereo sound with slim speaker, very comfortable.True HD high fidelity sound with the latest Bluetooth 5.0 technologyIt is the best gift for a family or friends when travelingUp to 10 hours of lifespan, USB chargeable battery life, built-in 200 mAh high-performance battery.Good companion for sleeping and traveling allows you to listen to music without using additional headphones.Product Specifications/Features:Bluetooth: 5.0Charging time: 2hUsage time: 10hFrequency: 20Hz-20kHzCharge voltage: 3.7-4.2VBattery capacity: 200MahSensitivity: 88dbImpedance: 32Scale: 10 mMaterial: polyester + cottonIncluded Items:1 Bluetooth 5.0 headset with mask1 Charging cable
