NEW IMPROVED MODEL: BT range up to 10 metres. Really stunning studio stereo sound quality with large HQ 40mm driver speakers to ensure a really solid bass and detailed treble, get lost in the music and immerse yourself in your audio with these amazing headphones.The powered active noise suppression/isolation technology system reduces incoming noise to an absolute bare minimum (reduction of up to 90%) and will provide massively improved listening quality with less user distractions. Amazing on a plane or train etc. Ultra comfortable and super soft ear pads also provide good in/out noise insulation too, just wearing them is a revelation! Especially ideal for noisy environments like aeroplanes, trains, public transport and even busy workplaces etc.*High power built-in intelligent rechargeable Li-Ion battery with overcharge protection, lasts more than enough for a long haul flight (see listening times below).BT Enabled, using the very latest high-quality CSR  Chipset for 4G Ready high fidelity cable free listening, for older devices it uses the standard 3.5mm headphone jack (Will work on cable connections without battery).Built in microphone for handsfree calling/talk too. Will work and connect with Facetime, WhatsApp, SKYPE calls etc and through your Apple iPhone, iPad and iPad Mini, iPods, Samsung Galaxy, Nokia, HTC, Sony, Google, Motorola, Tablets, PC Computer and Laptop etc. (Will show battery level in IOS 8 and above). Listen and make calls without hassle - it's amazing!These superb headphones also feature padded close fit ear cans which reduce noise levels both ways so that you can listen to loud music without others hearing.The lightly padded fully adjustable headband will easily fit most heads and is super-comfortable for long term use. The pivoting and turning ear-cans provide another degree of comfort and ensure a great fit no matter what shape head you have! There is a volume adjustment on the side of the ear cans and the noise suppression system may be turned on/off there also - turning the active noise suppression system on/off is a revelation in itself!!Perfect for travel, the ear cans rotate inward 90 degrees so the headphones, and so will take up less space upon storage/traveling.Please click HERE to view the spare case for these headphonesSpecifications BT version: 5.0 BT chipset: CSR8635 Noise-cancellation rate: 90% Speakers: 40mm Mylar Audio impedance: 32 Ohm Sound pressure level (sensitivity):105db Frequency response: 20Hz-20,000Hz Charging time: approximately 3 hours Charging: micro USB Operating range: up to 10 metres  Connection: Optional 3.5mm jack if required Battery times (approximate): BT only: 15 hours Noise cancelling only: 30 hours BT and noise cancelling: 12 hours 1 Year Warranty Weight: 195 Grams Dimensions Approx H22 x W18 x D8.5cmWhat’s includedEvoDX "Active" Headphones USB to Micro USB Charging Cable