This external sound card is made of , which can withstand use. Features the iron material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color: Black -Material: iron, electronic component -Size: 13.00X10.50X4.00cm/5.11X4.13X1.57in Battery capacity: 800 mA - The treble and low tone, the higher the treble, the sharper the sound, the higher the bass, the deeper the sound, which better modifies your sound effect. - Independent reverb adjustment, professional reverb adjustment, large knob design, turning on reverb the sound fuller and more three-dimensional. - 12 kinds of electronic tone tone, professional-grade electronic tone adjustment, choose the beloved sound that . - It is compatible with most mobile phones/computers/tablets, and the effect is stable. - It is manufactured with professional technology to ensure the product can work for a long time. Package list: 1 x sound card