Feature: 1. Aluminium alloy body and button, high-end and wear-resistant. 2. Double DSP noise control chip, no current noise, free of debugging. 3. Plug and play, simple and time-saving. 4. Built-in large capacity rechargeable cell, energy saving. 5. Professional reverb, improve sound quality. 6. Pure sound quality, independent adjustment. 7. Phone and laptop universal type sound adapter. 8. 12 sound effects, 12 electronic music, 6 patterns, 7 connection ways, one-key switch. Specification: 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: Aluminium alloy body and button, high-end and wear-resistant. 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. Pure sound quality, independent adjustment. Phone and laptop universal type sound adapter. 12 sound effects, 12 electronic music, 6 patterns, 7 connection ways, one-key switch. Specifications: Model: V8 Color: Black Charge Port: USB Sound Effects: 12 Electronic Music: 12 Pattern: 6 Connection Way: 7 Installation Way: Extraposition Audio Interface: 3.5mm / 0.14in Voltage: 3.3V-4.2V Charge Voltage: 5v±5% Frequency Response: 20Hz~20kHz±3dB Cell: 1 * Lithium Cell, 3.7V 1500mAh (included) Package Weight: 450g / 15.87ounces Package Size: 215 * 175 * 50mm / 8.46 * 6.89 * 1.97in Packing List: 1 * Sound Adapter 1 * USB Cable 2 * 3.5mm Audio Cable 1 * Instruction Book Package List: 1 * Sound Adapter 1 * USB Cable 2 * 3.5mm Audio Cable 1 * Instruction Book