Features:<br> Built-in with a 3.7V 1200mAh lithium battery.<br> Folding stand is easy to use, no assembly required.<br> A-frame shaped is more stable for holding the guitar.<br> Comes with a TF card with 128MB capacity.<br> Supported with WMA, WAV, and MP3 audio formats.<br> Universal guitar stand, suitable for acoustic and electric guitars.<br> The Benefits of Guitar Open Sound:<br> 1. The sound quality of the guitar can be greatly improved. The high and low bass are integrated with each other, which is more coordinated.<br> 2. The sustain of the guitar will be longer, and the transition of the sound will be more coherent!<br> 3. After sound open, the tone of the guitar will be more transparent and powerful.<br> 4. The volume of the guitar will also increase significantly.<br> Specifications:<br> Material: ABS+aluminum alloy+silicone<br> Battery: 3.7V 1200mAh 103040 lithium battery<br> TF Card Capacity: 128MB<br> Audio Format Supported: WMA, WAV, MP3<br> BT Version: BT5.0<br> BT Name: SGS-10<br> Transmission Distance: 10M<br> Use Duration: About 4 hours<br> Unfolded Size: 312 * 276 * 222mm / 12.28 * 10.87 * 8.74in<br> Folding Size: 312 * 135 * 57mm / 12.28 * 5.31 * 2.24in<br> Item Weight: 594g / 1.31lb<br> Package Weight: 738g / 1.63lb<br> Package Size: 33.3 * 15.5 * 7.5cm / 13.11 * 6.10 * 2.95in<br> Package List:<br> 1 * Stand<br> 1 * Type-C Cable<br> 1 * Manual (English)<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin