CK700 Wireless Headphones Black Features: - Comfortable headband in adjustable height - Light-weight design suitable for long time wearing - Soft ear cushions provide a perfect seal for perfect sound - High-Fidelity transmission quality provide stereo audio enjoyment - Reduce noise from outside providing enjoyment of pure music - Gold-plated 3.5mm connector provides excellent audio signal transmission - High-performance 40mm driver units providing deep bass and good sound quality - Ideal for PC, laptop, mobile phone, MP3/MP4/CD/MD player and portable game devices. Specifications: - Driver Unit: 40mm - Frequency Response: up to 60KHz NB: Adjust headphones to the proper volume. A loud sound may damage your ears. For traffic safety, never use the headset while driving. What's in the box 1 x Headset 1 x USB cable