Sleep Headphones - Ultra Thin - Soft Headphone - Sleep Mask- Most Comfortable Headphones for Sleeping - Perfect for Air Travel, Sports, Relaxation, Meditation and Relief from Insomnia (FIRIK Black) NEW VERSION with ULTRA THIN SPEAKERS and durable BRAIDED CABLE. Lightweight, comfortable and washable sleep headphones with positionable speakers. BLOCKS OUT NOISE. Use for sports, yoga, meditation and relaxation. Best headphones for sleeping. FLEXIBLE AND DURABLE 1.5 METER CORD with 3.5 mm stereo plug fits most devices. COMPATIBLE WITH MOST DEVICES like Apple iPhone, iPad, iPod, Android, Samsung Galaxy, Blackberry, Nokia, LG, HTC, Google Nexus, Lenovo, Asus, Sony, Dell, Toshiba, HP, MP3, MP4 and other audio devices CUSTOMER SERVICE - One year guarantee, replacement for free while the product you received is broken. And all the email we will reply as soon as possible.