Description: This headphone amplifier has widely compatible audio jacks, which is practical and universal. This headphone amplifier features anti-electromagnetic interference, which can bring you stereo and excellent sound effect. It is constructed of metal material. The length of this product is 14cm, width is 9.6cm and height is 3cm. This headphone amplifier is suitable for phone, computer, microphone, speaker, monitor and so on. Item Name: Headphone Amplifier Material: Metal Use Scene: Studio, Stage Features: Compact, Stereo, Rechargeable Size Details: 14cm x 9.6cm x 3cm/5.51" x 3.78" x 1.18" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Headphone Amplifier 1 x Power Adapter 1 x User Manual This headphone amplifier has widely compatible audio jacks, which is practical and universal. This headphone amplifier features anti-electromagnetic interference, which can bring you stereo and excellent sound effect. It is constructed of metal material. The length of this product is 14cm, width is 9.6cm and height is 3cm. This headphone amplifier is suitable for phone, computer, microphone, speaker, monitor and so on.