The sound adapter is conveneint to to carry, plug and play, simple and time-saving. Built-in large capacity rechargeable cell, long time use with low energy consumption, energy saving. Professional reverb, multiple sound effects one-key switch, pure sound quality, independent adjustment. Features: BT accompany, stable and no wire connection trouble. Multiple interesting mode and personal sound. 8 interesting modes, meets your different needs. 6 adjustable button, finely adjust the volume of the sound. Double DSP noise control chip, no current noise, free of debugging. Plug and play, simple and time-saving. Built-in large capacity rechargeable cell, energy saving. Professional reverb, improve sound quality. Phone and laptop universal type sound adapter. Specifications: Model: V8S Material: Metal Color: Black Charge Port: USB Pattern: 10 Installation Way: Extraposition Audio Interface: 3.5mm / 0.14in Voltage: 220V BT Version: 4.1 Socket: Dual Microphone Support Function: Eliminate The Sound Of Songs Tuning: Rotary Knob + Button + Push Rod Sampling Number: 46Bit Cell: 1 * Lithium-Ion Rechargeable Cell, 3.7V 1500mAh (included) Package Weight: 500g / 17.64ounces Package Size: 146 * 108 * 47mm / 5.75 * 4.25 * 1.85in Note: The cable is color random. Packing List: 1 * Sound Adapter 1 * USB Cable 2 * 3.5mm Audio Cable 1 * Instruction Book