Symphonized NRG Premium Genuine Wood In-ear Noise-isolating Headphones with Microphone (Gray) HANDCRAFTED WITH GENUINE WOOD: These earphones produce a crisp powerful acoustic sound with strong deep bass. Studio-tuned audio with crystal clarity guaranteed. UNIQUE IN-EAR CANAL DESIGN: These noise cancelling in-ear headphones reduce ambient noise for an exceptional audio experience. COMFORT-FIT: Three sizes (S/M/L) of custom silicone ear tips to ensure a comfortable fit for everyone and one eco-friendly convenient carrying pouch included. EASY TO USE: Answer or end calls, activate Voice Control, skip tracks with a smart built-in in-line microphone. The ear buds also have a sleek tangle-free nylon cord that comes in fourteen different colors. COMPATIBILITY: With the stylish design and high-end sound quality, Symphonized earbuds are compatible with the latest generations of iPod, iPhone, and iPad. They work with all Androids, tablets, mp3 players, and related devices with a standard 3.5 mm jack.