Combining stylish, warm earmuffs with headphones that can be connected to your iPod, Smartphone or MP3 player through a 3.5 mm jack, the KS Audio Earmuffs bring fashion, practicality and music together. Super-soft lining to keep your ears warm Stylish design to give you comfort whilst keeping up with the latest fashion Sound is punchy with solid bass, retaining clarity, detail and sound stage Easy to use track and volume controls Headphone Technology Engineered by people who care about sound quality, the Audio Earmuffs have been designed using technology only usually seen in high-end headphones. With their 40 mm drivers, your music will sound punchy with solid bass and retain clarity, detail and sound stage, so you can enjoy an excellent sound experience whilst keeping your ears nice and toasty. Comfortable and Warm With their stylish design and soft earcups, these headphones are ideal for keeping your ears warm, while the adjustable headband - which is made from a super flexible polymer - can be positioned to fit most head sizes. Compatible, Connectible, Adjustable The KS Audio Earmuffs can be used instead of your existing headphones and are easily connected to your Smartphone, tablet or MP3 player. Whether it's an iPod, iPhone, iPad, Android or Windows phone, all you have to do is simply connect to your device using the supplied 3.5 mm jack (which is the same as the one used for standard headphones). Specifications Compatible with most Smartphones, tablets and MP3 players 3.5 mm jack Frequency response: 40 Hz - 18 kHz Sensitivity: 103 dB Box Contains KS Audio EarmuffsCable with 3.5 mm jack