What's in the box:

Multi-Function Free Debugging Rechargeable Phone&Laptop Universal Sound Adapter (Standard)

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: 5v5%
Frequency Response: 20Hz~20kHz3dB
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
3 * 3.5mm Audio Cable
1 * Instruction Book