High Visibility Reflective Headband: The 360 °reflective black headband headphones is made of high quality reflective material, which can effectively reflect the light from the street lamps or headlights, so that you can be seen more easily in the dark. Unrivaled Comfort Experience: The upgraded thin bluetooth speaker improves comfort, and the padded foam keeps the speaker from pressing against your ears, especially for side sleepers. Experience ultimate relaxation with the incredibly soft construction of LC-dolida sleep headphones. LC-dolida bluetooth sleep mask is made of a lightweight, breathable fabric blend that ensures maximum comfort all day long, keeping your skin cool and dry even on hot summer days. 5.4 Bluetooth HiFi Stereo Sound with Thin Speakers: Bluetooth Headband sleeping headband with Latest Bluetooth technology provide more stable connection with your phones, tablets, laptops or pc, Only 0.25 inch Thin speaker produce High-fidelity stereo sound quality and provide soft and comfortable music environment. 2 Hours Quick Charging, 15 Hours Continuous Playing: Built-in powerful battery chip, this Bluetooth headband sleeping headphones only needs to be charged for 1~2H, the talk time/music playback time can reach 10 hours which is enough to support long time exercising like hiking, climbing. Disassemble and Washable Bluetooth Sleep Headphones music headband is more convenient to keep and clean. Comfortable Cooling and Stylish Bluetooth Headband: LC-dolida Fashion Pattern Designed Bluetooth Sport Headband for Sleep Headphones is made of highly elastic and breathable materials, including durable braided cables, highly elastic lining and sweat-wicking design. Keeps you comfortable after sweaty workouts; The included straps help prevent sweat drips from getting into your eyes; The elastic and well-built sleep headphones fit a variety of head shapes. Durable and easy to clean.