Wireless Bluetooth V4.2 Tech – This Wireless Headband pairs with any Bluetooth-enabled smartphone or tablet devices quicker & easier. Built-in rechargeable LiPO battery and with a 2 hour charging time provides up to 8 hours of Playing Music with a 100 hours standby time.
Hook & Loop Design with Speakers Adjustable: The exterior layer is made of soft Lycra fabric while the inner layer adopts mesh lining flexible fabric. It allows you to adjust the headband to fit your head ( around 18.9-22in ) for using it other than a mask. It can be pulled down over the eyes as a sleep mask & blindfold for napping or sleeping.
How to Wash – Our sleep mask headband features headphone slits that make the headphones easy-to-remove and reinstall so that you can wash your headband. Hand-washable after removing the Bluetooth modules.Never worry about sweat or dirt.