FeaturesKustom Ukulele AmplifierPortable, supplied with a carry strapAuxilliary input to play along with music, and headphone outputBattery or Mains Powered for instant portabilitySupplied with a transducer pick up to amplify any ukuleleThe Kustom KUA10 Ukulele 10W Battery Powered Amplifier with Strap & Piezo Mic Kit is a portable amplifier package specially designed to amplify the unique characteristics of a Ukulele. With its portable size, adjustable shoulder strap & the ability to run off 6-AA batteries, allows the player to take their performance anywhere. The KUA10 KIT also has an AUX input, to listen or play along with, and a headphone output (disconnects internal speaker) for playing privately.