ZenNutt Unisex Bluetooth Beanie Hat Black Knit Winter Cap Wireless Musical Running Headphone Hat with 2 Speakers & Mic Unique Tech Christmas Gifts for Men Women Teen Boys Girls Beanie with Bluetooth TechThis Beanie Hat makes it possible to combine the Beauty with Tech for Hands free Calling and Wireless Music Enjoyment while keeping your head warm.Great winter hat for running, skiing, skating, hiking,dog walking and so on.Would be a goog choice as a Christmas Gifts for Men,Women,Boys,Girls. LONG LASTING BATTERY LIFE ZenNutt Bluetooth Hat Headphone is built in rechargeable Li-Ion battery,support up to 3.5 hours talking/playing time after 2 hours Full charge,60 hours standby. V4.1+EDR VersionThe Bluetooth module adopts 4.1 Version Bluetooth Technology whch make it faster,easier,more stable to pair with most bluetooth enabled devices.such as iPhone, Android,smartphones,tablets,MP3 and in seconds to make/answer phone call.wireless transmitters up to 33 feet.(10m) One Size Fit Most and fully washableThe ZenNutt Knit Beanie Hats are made of elastic knitted. One size will fit most.Easily to remove the Bluetooth Module from the Pouch to wash the bluetooth cap as you wish. WarrantyWe offer 1-YEAR free warranty after purchase,60 days money-back guaranteed and 1year replacement with 100% satisfaction