【Adjustable Headband Headphones 】LC-dolida Bluetooth ear warm headband equipped with a long-lasting magic velcrois which easier to wear and even more adjustable. Simply undo the strap fastener, adjust it to your desired fit, and fasten it for a snug and comfortable wear. ski tunes headband is designed to fit all head size and shapes, ensuring udmost comfy wearing experience. 【3 in 1 Design】Sleep Headphones & Bluetooth Sleep Mask & Bluetooth Sports Headband 3 in 1. LC-dolida bluetooth headband headphones with Microphone enable to answer the call hands-free as well as you can enjoy music without wearing heavy headphones. The bluetooth ski headband is suitable for outdoor activities such as skiing,gym workouts, jogging, yoga, and other outdoor activities. Additionally, it can assist with relaxation, meditation, travel, and more. 【Bluetooth low power technology】Built-in 180mAh rechargeable lithium battery, that provides over 14 hours of music or talk time after charging time 1.5-2 hours.Thanks to its advanced battery technology, our product provides a longer lifespan, lasting up to 2-3 years. This guarantees extended enjoyment of your music, even after continuous use. 【Comfortable & Breathable】LC-dolida sleep headphone bluetooth music winter headband is made of 95% polyester fiber and 5% spandex, extremely stretchable, fit most head size, what is more, it's incredibly soft and hypoallergenic. Ski bluetooth headband is cool and soft, and quick drying sport headband makes you feel comfortable after sweating exercise. 【Ultra Thin Speakers,Side Sleeper' Companion】Sleep headphones bluetooth built-in 2 ultra-thin speakers, devices control module is in the middle of bluetooth sleep headband, no press the ears.Choose LC-dolida sleeping bluetooth sleep mask, sleep fast, stay asleep and have a good dream, they block out ambient noise without using earplugs that are painful and fall out.