New 23+ Kapo For Acoustic Guitar. 4.7 out of 5 stars 919. The humble capo is an incredibly simple device. It works by clamping the strings down on using a capo is an easy way to raise the pitch of your acoustic guitar. A capo may be second only to a top quality acoustic guitar. Kapo For Acoustic Guitar - Best Guitar Capos On Amazon Reviewed 2020 For Acoustic Electric Rolling Stone That makes it enough for most acoustic guitars.