For indoor use. Works without any problems. Too many functions... It's convenient to have it on a board!! Shipping is unavailable from October 31st to November 2nd. A multi-functional multi-effects unit, equipped with effects such as drive and reverb. - Model Name: MS-50G+ - Brand: ZOOM - Type: Multi-effects unit - Functions: Drive, preamp, delay, reverb - Input Terminals: Mono - Output Terminals: Stereo - Included Accessories: Instruction manual Thank you for viewing.