Nady QH-30NC Racketblaster Noise Canceling Stereo Headphones Large 30 mm drivers for rich, powerful audio with full-frequency response and punchy bass Full-size padded leatherette ear cups and adjustable headband for ultimate long-lasting wearing comfort; fits all head sizes Compact folding design and leatherette pouch for easy transport while travelling - perfect for private listening without distracting ambient noise in airplanes and other noisy environments