Product Description Features High-Fidelity DSP: The built-in digital audio DSP module is designed with a high-quality circuit to enhance sound effects such as reverberation, chorus, and delay, making your sound flexible, transparent, and beautifully broad. Howling Suppression: Enjoy a powerful automatic noise suppression function that eliminates howling issues, allowing you to perform with full concentration and no distractions. Bluetooth Connection: Connect your guitar to Bluetooth devices and enhance your music with vibrations or additional sounds. Play guitar accompaniment or access a variety of audio files online for a broader musical experience. Resonant Function: An internal flat speaker enhances the guitar's natural vibrations, producing DSP sound effects and increased resonance. Use the guitar box as a small speaker to amplify your sound. Convenient Charging: Equipped with a Type-C charging interface on the pickup panel, providing a simple, universal, and convenient charging experience. Specifications Material: ABS Power Supply: 1 x 3.7V 2200mAh rechargeable battery (NOT included) Item Size: 92.5 x 69.3 x 57mm / 3.64 x 2.73 x 2.24in Item Weight: 131g / 4.62oz Package Weight: 290g / 10.23oz Package Size: 21 x 15 x 9cm / 8.27 x 5.91 x 3.54in Package List 1 x Main Unit 1 x 6.35 Pin Output Line 1 x Resonant Horn 1 x Type-C Charging Cable 1 x Pickup Function Panel 5 x Knob 5 x Sleeve Nut 1 x Manual (English)