Bluetooth Headphones, SmartSpeed E6 Wireless Headphones Noise Cancelling with Microphone Hi-Fi Stereo Headsets for Smart Phones ,Tables and Laptops Advanced technologyCSR Bluetooth 4.0 and noise cancelling for an amazing wireless music experience. Exclusive appearance design: 70% body is made up from aluminium alloy, delicate and lightweight. Fantastic audio performance: Rich and High-Fidelity audio delivering rich bass, crisp high, and natural midtones. Convenient support: Built-in HD microphone, Aux cable support and 8 hours talk and audio play time. SmartSpeed warranty: Non-artificial damages, 1-month money back, 6-month warranty.100% brand new and high quality product.