Beanie with Built In Wireless Bluetooth Headphones

Beanie with Built In Wireless Bluetooth Headphones Features: Warm Beanie Classic design Soft knit material One size fits most Material: 60% polyester, 40% acrylic Care instructions: Remove the headphones and battery pack Machine wash Bluetooth Headphones Built into the hat Built-in mic for hands-free calls Bluetooth version: V3.0+EDR Frequency: 2.4026GHz–2.480GHz Transmission distance: 32.8’ Transmission distance of mic: ≤ 3.28’ Li-ion battery: 3.7V/100mA Charging time: 2 hours Number of charges: > 1000 times Charging voltage: DC 5V Standby time: 60 hours Continuous working time: about 3.5 hours