Item Type: Sound Card Material: Iron Channel System: Dual Channel Sampling Resolution: 16bit Installation Method: External Audio Interface: 3.5mm/0.13in Interface Output Sample: 44.1KHz Built-in Lithium Battery Capacity: 1200mAh (Inclusive) Multi-speaker Mode: 2.0 Charging: 5V/1A Package List 1 x Sound Card 1 x Manual 2 x Audio Cable 1 x Charging Cable 1Professional reverb adjustment, large knob design, turning on reverb can make the sound fuller and more threedimensional. 2The sound card supports about 99% of live singing software on the market, compatible with most mobile phones, computers, and tablets, with stable effects. 3The voice sung during the live broadcast is returned to ears through monitoring, so you can hear your voice effectively. 4Unlimited Bluetooth connection accompaniment, highquality Bluetooth 5.0 chip, stable signal, fast transmission, 5Made of high quality of iron material, durable and can be used for a long time.