SUNG-LL Soft and Warm Hat Wireless Beanie with Smart Cap Speaker Micro Headphone (Grey) High quality and 100% brand new, legally sold in USADOSO High-end knitted environmental friendly fabric can keep your ear warm and comfortable in winter . Equipped Wireless that can be used for most of devices with Wireless function. Installed miniature microphones that can answer the phone call from the calling device hands freely. Set in rechargeable battery by USB cable can be on standby for a long time.