I only tested the sound for a few minutes after purchasing it new. The volume isn't too low, and the sound quality is good, so I think it's perfect for practicing at home or carrying around. There are many videos of this amp on YouTube, so please refer to them if you are interested. 《Product Description》 ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ Bluetooth-equipped retro design rechargeable amp JA-02 II This is a 5W rechargeable amp with Bluetooth and a stylish retro design. Despite its compact size, it has two speakers to achieve a wide sound. It is equipped with a Clean/Overdrive switch, allowing you to play with distorted sounds. You can also practice without worrying about your surroundings by using the headphone output. Furthermore, it has Bluetooth, so you can play music from your smartphone or player. It is rechargeable via USB Type-C, making it an eco-friendly and convenient compact amp. Power: 5V DC, 1A (Built-in battery: 3.7V lithium polymer battery 2000mA) Full charge time: 2~2.5 hours Playing time: 2.5~3.5 hours Output: 5W Input impedance: Guitar: 1MΩ / AUX: 10kΩ Speaker impedance: 4Ω Size: 147x75x96mm Weight: Approx. 330g ━━━━━━━━━━━━━━━ #OCD #Fulltone #Boss #BOSS #Overdrive #Distortion #Distortion #overdrive #riot #mxr #mad #Effecter #Fender #Stratocaster #Telecaster #Squier #Gibson #Relic #LesPaul #Ibanez #History #Photogenic #Fernandes #PRS