Features:1. Easy to Adjust: Rotatable ear cup and adjustable headband, easy to adjust to fit your head, comfortable wearing for all day.2. Foldable & Compact: Simple style, lightweight, and it can be folded to compact size, easy to carry. 3. Comfortable Wearing: Using skin-friendly earmuffs pads, so soft and breathable, so you will feel much more comfortable when enjoying movies or music.4. Matching with smartphones, tablets, MP3/MP4 or laptops to listen to music and watch videos.5. Made of high quality material, sturdy and durable in use.Specification:Output power: 20mw*2, 20MW* 32ΩMaximum output distortion: ≤1%Type: wired headsetSignal to noise ratio: 93dBSensitivity: 103dB ± 3dBInput voltage: DC 5VWorking voltage: DC 3.7VPackage List:1 * Headphone(Random cable color).Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.