Mugig Guitar Amp Mini Guitar Amp for Heavy Metal Music Rechargeable Portable 1/4" Input - Pretty cool device that plugs into your guitar to allow you to play and listen to yourself jamming through your headphones. Small in size 3.07" x 2.99" x 0.75" so it is portable enough to bring with you anywhere. The heavy metal sound is awesome and sounds great. Charges via USB and once fully charged can be used for approximately 4.5 hours. This is great for anyone who plays but needs to keep the noise level at a minimum. This is a great device that every guitarist should keep on hand. I would highly recommend the Mugig Mini Guitar Amp for Heavy Metal Music. #RankBoosterReview #Sponsored #Mugig https://www.amazon.com/Mugig-Guitar-Heavy-Rechargeable-Portable/dp/B071FBCZ6Z