The Sound Therapy Eye Mask with Bluetooth creates a soothing “personal bubble” to help you relax and fall asleep at home or while you travel. Made of supersoft high-quality micromink polyester fabric, it completely blocks out light day or night. Dual Bluetooth speakers play built-in soothing sounds (rain, stream, ocean) or stream music from your phone or tablet. Operates up to 8 hours on a full charge. Adjustable strap, one size fits most. Includes storage bag.