1、Easily optimize the sound, 112 electroacoustics, 18 sound effects, and 6 effect modes. 2、It has a variety of control modes, reverberation size adjustment, microphone volume adjustment, treble and bass adjustment, recording volume control, volume control, volume control (headset function). 3、Support smart phones, computers, and can be used with a single headset, wide application environment. 4、7 connection methods: one mobile phone live broadcast, two mobile phone live broadcasts, three mobile phone live broadcasts, mobile computer simultaneous live broadcast, one computer live broadcast, computer accompaniment mobile phone live broadcast, meter input mobile phone live broadcast. 5、2‑channels system, through the optimization of multiple modes, brings an excellent sound experience. 1 x Sound Card1 x Charging Cable1 x Manual2 x Audio Cable Item Type: Sound CardMaterial: Iron ShellChannel System: Dual ChannelSampling Resolution: 16bitOutput Sample: 48KHZBuilt-In Battery Capacity: 1200mAh (Battery Included)Audio Interface: 3.5mmMulti-Speaker Mode: 2.0