Skullcandy Crusher Evo Over-Ear Wireless Headphones with Sensory Bass with Charging Cable, 40 Hr Battery, Microphone, Works with iPhone Android and Bluetooth Devices - Bone - What is Crusher Tech? Boost your bass with the sensory bass slider, mellow out or go all in skull crushing! Crusher Tech enhances your iPhone, Android or Computer audio experience - Feel the bass tuned to you - Listen to songs the way they were made to be heard. With the Personal Sound feature, the Crusher Evo analyzes your hearing and produces sound specifically for YOU - One Fat Battery - 40 hours of listening off of 1 charge so whether youre on an all day gaming sesh or just dont have time to charge youll know that you still have some juice. If you do run out a 10 minute quicky... charge will give you 4 hours of play! - Never lose your headphones again with Built-In Tile Technology. Be able to find your headphones in real-time with the Tile App - Includes Skullcandy Line USB-C cable for better charging experience - Buy with Confidence - 1 year US warranty included