BE Headwear Diver Down Bluetooth Hat

Keep your head warm like never before with the BE Headwear Diver Down Bluetooth Hat. This beanie is equipped with Bluetooth technology to blend old school with new school technology. Bluetooth: Vimicro 4.1 Frequency: 2.402GHz 2.480GHz Transmission distance: about 10M Transmission distance of MIC: less than or equal to 1M, Battery: 3.7V180mA Charge voltage: DC4.2V about 5V Charge time: 2 3 hours Play time: 6 9 hours Speaker Diameter: 30mm Magnet Type: NdFeBFrequency Response: 20 20k HzImpedance: 16 ohmsMicro USB ChargeSIRI compatible, Press button on headset twice to activate SIRI, Battery Heated: Yes, Material: CottonSynthetic Blend, Type: Beanie, Model Year: 2017, Product ID: 455187, Model Number: DD0010, GTIN: 0812379685937