The definitive desktop amplifier An all-purpose amp that satisfies all players, from beginners to professionals. Spark is a 40W combo amplifier with BASS, MID, and TREBLE tone controls, convenient MOD, DELAY, and REVERB effects, and features like easy-to-use presets, a built-in tuner, and tap tempo. You'll be amazed by its versatile features and authentic sound. Spark's true value is further enhanced when linked to apps.・Tone Library A huge tone library with over 10,000 tones that continues to grow. The Spark app gives you access to over 10,000 guitar and bass presets created by the world's renowned guitarists, professional session players, seasoned recording engineers, and hit-making producers. Smart Jam: An amp that jams with you. The Spark Amp & App learns your guitar playing and produces authentic bass and drum sounds. Your very own "smart band" goes with you wherever you go! Auto Chords: Automatically display chords for millions of songs. Choose the song you want to play, and the Spark app will display chords in real time. You can also slow down the tempo or loop difficult sections. Additional features include: full-range sound, Bluetooth speaker, USB audio interface, and compatibility with electric, bass, and acoustic guitars.