1.Sound card with multiple functions, 16 kinds of sound effects, 8 kinds of effect modes.8 kinds of effect modes includes Electronic sound mode, for mode, voice change mode, monitor mode, chat mode,microphone mode, singing mode, and cancel the sound mode. 2. sound effect chip, tuning button, 16 kinds of sound effects, elimination of sound,live singing, avoiding a button, real-time monitoring, large capacity battery. 3.Powerful audio dual chip, better stability, better signal, clear sound quality without delay, upgrade. 4.The of the shell is sandblasted with metal paint. It has a grinding feel, scratch , comfortable and delicate touch.It gives you a delicate sensory experience. 5.Reverb size adjustment, microphone volume adjustment, high bass adjustment, recording volume control, music volume control,monitoring volume control (earphone function). Support mobile phone computer usage, support single headset usage. 6kinds of connecting methods: one mobile phone K song live, double mobile phone live, phone live,mobile phone computer synchronous live, one computer live, computer guidance mobile phone live. Support system: for system, for ios system, for Android system.Reminder: If your mobile phone does not have a 3.5mm earphone audio jack, it needs to be equipped with an audio adapter. Model: V8S version: 4.2 Interface Type: USB Applicable Type: Household/Outdoor Installation: External Audio interface: 3.5mm interface Batteries: rechargeable batteries(included) Charging: 5V/1A Colour: black Material: ABS Package Contents: 2 x sound card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.