·Headphones tuned by a Grammy Award winning mixer. While creating the 1M301 headphones, 1MORE collaborated with Luca Bignardi, internationally acclaimed audio engineer and mixer, to complete the final tuning. · High quality sound is meaningless without a comfortable fit. Included with each pair of headphones are 4 sized sets of silicone ear tips so that you get a customized fit. · Additionally, the 1M301 is ergonomically designed to mimic the angle of your ear canals. · The dual in-line remote control is compatible with both iOS and Android. You'll love having volume control, play/pause and call answer in easy reach. · The patented triple layer diaphragm design allows a listener to hear music as the musician originally intended. The result is clean treble, immaculate mid-range and powerful bass. · A unique cable design provides durability and strength. · The kevlar-reinforced, tangle-resistant braided cable wire is strong and durable. ar-reinforced, tangle-resistant braided cable wire is strong and durable