Recently I purchased the Spark GO mini amp. Before purchasing I did my research and discovered that this amp is more guitar. I took the chance. I love this amp. It easily fills a room with sound. It has multiple amps as well as numerous pedal effects. The combinations are innumerable. It will play your backing tracks via Bluetooth as you play through your favorite mic. It has a jack for headphones. The app is easy to use but I am still discovering what might be possible. It’s not for the stage but if you want to have a blast while amusing friends and family this will do the job. Also, It’s rechargeable and will play for almost 8 hours. Great fun! I paid $129.