Material: metal Power Supply: built-in rechargeable lithium battery Size: 17.5 * 11 * 1.8cm/ 6.9 * 4.3 * 0.7in Features: Live sound card for network broadcast, music recording, online singing, game, etc. Adopts dual digital signal processor and noise reduction chips to provide you with excellent sound quality. Built-in various interesting sound effects, and each sound effect can create different atmosphere and shorten the distance between you and your friends or fans. Multiple interfaces allows you to connect the sound card with smartphones, computer, earphone, microphone and so on to make your live streaming or music recording more professional. Also supports wireless BT connection, you can connect the sound card with your smartphone or tablet via BT to play accompaniment music. And the sound card can work with most mainstream live broadcast software. Built-in rechargeable lithium battery and compact size design, you can carry the sound card around during traveling; One button control one sound effects, easy and quick to operate. Package List: 1 * Sound Card 2 * Audio Cables 1 * USB Charging Cable note: Due to the difference in light and screen, the item's color may be slightly different from the pictures. Allow 0.5-2cm differences due to manual measurement.