Feel free to ask any questions! The sound, usability, and app integration are all excellent. There are tons of review videos on YouTube, so check them out! (Personally recommended product) I bought it at an outlet. The last photo is a reference photo from a different store. [Brand and Model] The Positive Grid Spark MINI is a compact yet high-performance guitar amp. It has a smart design and is portable. [Multi-functional Controls] You can freely adjust the tone using the PRESET, GUITAR, and MUSIC knobs. You can enjoy a variety of sounds, and it has features that will satisfy beginners to advanced players. [Connectivity and Convenience] Equipped with connection terminals such as AUX IN, USB, LINE OUT, and PAIR, it's easy to connect with other devices. You can utilize even more features with the dedicated app. - Brand: Positive Grid - Model Name: Spark MINI - Control Knobs: PRESET, GUITAR, MUSIC - Connection Terminals: AUX IN, USB, LINE OUT, PAIR - Battery: Rechargeable battery included - App Support: Operable with a dedicated app Thank you for viewing.