Description Features:Style and Tech Combine: 100% Soft ,double knitted beanie,keep your head warm and allows you to listen to your music without having to wear additional headphones,the bluetooth stereo headset brings you great sound quality,style and comfort.Perfect for gym,fitness,workout,exercise,outdoor sports such as running, skiing, skating, hiking, camping, dog walking, holiday travelling and so onThe Latest Blutooth Technology: Easy and fast to pair with cell phones, tablets and other Bluetooth enabled music devices,wireless range up to 10mUser-friendly Control Panel: The control panel built-in stereo speaker and microphone on the left earpiece allows you to skip back and forth through your playlist, answer and hang up calls without having to use your phoneLong-lasting Enjoyment of Music: Built in rechargeable Li-Ion battery,about 10 hours talking/playing time, 2hours charging time,24 hours standby, so you have less time charging and more time doing.(USB charging cable included)Notice:Actual color may be slightly different from the image due to different monitor and light effectPlease allow 1-3cm deviation due to manual measurementDescription:Frequency range: 20-20KHZ Sensitivity: 95DM Transmission distance: 10M Impedance: 32 ohm Speaker size: 30MM Charging time: 2H Standby time: 24H Listening to songs and talk time: 10H Battery: 180mA polymer lithium battery