Quantity 1 Piece(s) Color Blue Material PPC + PCB Compatible Models Guitar Application True analog circuit faithfully simulates the response of original amps. Functions Classic Rock gives you the great high-gain sound of a Marshall Super Lead100 amp. Features UP to 15 hours of battery life with supplied Lithium batteries; AUX in jack lets you play along with your CD/MP3 player; True analog circuit faithfully simulates the response of the original amps; Plug&play. Packing List 1 x Headphone guitar amplifier 1 x USB cable (55cm) 1 x Audio cable (90cm)