Multi-functional GBX1000 guitar amplifier with adjustable equalizer and a convenient carrying handle. Sound output confirmed with guitar and bass. Scratches and dirt present. External input and headphone jack not tested. - Model Name: GBX1000 - Input Type: Guitar/Bass - Effects: Included - Equalizer: Treble, Middle, Bass adjustable - Output Terminals: EXT IN, PHONE - Power: ON/OFF switch - Handle: Plastic handle - Exterior: Textured finish Thank you for viewing.