The closed, dynamic, Sonata headphones immerse you in great sound. The speakers provide excellent isolation from outside noises, so you can enjoy a superb acoustic experience without being disturbed. Sonata delivers powerful stereo quality sound, thanks to its built-in strong neodymium magnets that ensure low sound distortion and boost the quality of all your music. Sonata’s unique fold and flip design feature a unique mechanism that lets you easily fold it up and store it. The custom built headband ensures lasting strength and durability. Features High-Performance Stereo Headphones: The Classic headphones from Promate combine great performance with style and function. Hear every instrument the way you were meant to with excellent frequency response and no noise bleed. Versatile and durable, these headphones lend themselves perfectly to any situation - listening to music, gaming online, working and more. Folding Mechanism for Maximum Convenience: With the Promate Sonata headphones handy folding mechanism, you can easily store them away in a backpack or rucksack without worrying about how much space they'll take up. When you need them again, simply retrieve and unfold. You can take Promate Sonata anywhere with you. Comfortable Build Ensures A Perfect Fit: With so little weight to them and with extremely comfortable ear pads around the ears, it’s easy to see how you could forget you’re even wearing the Promate Sonata headphones. Immerse yourself completely in whatever musical world you're currently inhabiting and don't let your hardware get in your way. Comfortable Build Ensures A Perfect Fit: With so little weight to them and with extremely comfortable ear pads around the ears, it’s easy to see how you could forget you’re even wearing the Promate Sonata headphones. Immerse yourself completely in whatever musical world you're currently inhabiting and don't let your hardware get in your way. Lightweight Design: Lightweight headphones have soft memory foam earmuffs, simulate human skin texture to wear more comfortable. The softly padded headband can be adjustable, suit for different size ear and head. Punk Style light your music spirit, lose yourself in music. Near-universal Compatibility: Thanks to their 3.5mm connector, the Promate Sonata headphones are perfect for use with virtually any device - including smartphones, laptops, tablets, e-readers and more. Sturdy Construction: Thanks for uncompromising build quality, these headphones are incredibly robust and long-lasting. At the same time, they are lightweight, and their padded and adjustable construction ensures a custom fit. Professionally Crafted Drivers: The professionally tuned 40mm drivers recreate music the way it was intended to be heard – crisp and clear. Deep bass, great sound balance with noise-isolating function, special design for those who enjoy music, movie, Skype, phone call, online course, game. Passive Noise Cancellation: The Passive Noise Isolation headphones work greatly for high-frequency noise as well as burst noise (about 15-20dB reduction); Not like Active Noise Cancellation (ANC) headphones, it won't damage the sound at all. Built-In Remote and Microphone: For maximum functionality, the headphones feature a microphone and a built-in remote - allowing you to pause, skip to next song, answer and end calls and use voice commands without taking your phone out of your pocket. Tangle-free Cable: The tangle-free braided cable designed to prevent tangles in both use and storage while providing the maximum strength. Technical Specs & Features: Driver unit diameter: 40mm Sensitivity: 105dB Mic Sensitivity: -58dB±2dB Frequency: 20Hz-20KHz Impedance: 32O Input jack: 3.5mm Cable Length: 1.5m Compatible with 3.5mm Audio Jack Enabled Devices Categories Like: Compatible with Smartphones Compatible with Tablets Compatible with iPod, MP3 & MP4 Players Compatible with Laptops Compatible with Desktop and PC Devices Like: Apple - iPhone, iPad, MacBook, iMac, iPod-All Generations Samsung - Note 8, Galaxy S Series, J Series, A Series, C Series, Note Series, Tab Series and More Huawei - Honor Series, P Series, Y Series, Mate Series and More LG - G Series, V Series and More HTC - Desire Series, U Series, One Series and More Microsoft Surface Pro Series, Surface Laptop, Surface Book, Surface Studio and More Nokia - Lumia Series, Asha Series, N Series, E Series and More One Plus - OnePlus X, OnePlus One, OnePlus 2, OnePlus 3, OnePlus 3T, OnePlus 5 and More Google- Pixel Series, Nexus Series and More Lenovo Smartphones - A Series, Vibe Series, K Series, P Series, S Series, Phab Series and More Asus Smartphones - Zenfone Series, Padfone Series and More Google- Pixel Series, Nexus Series and More And Other 3.5mm Audio Jack Enabled Devices