An economic solution for low light performing situations. An all around great light! Specifications - uses 4 AA batteries (not included) or any 5 volt AC Adapter (sold separately). Clips-on to music stand or free-standing piano music holder. Compact fold-up design fits in most instrument cases or pocket. Fully adjustable light beam for gigs or practice. Multi-purpose and stage tested. Great for use in dark clubs, at mixers, schools, orchestras, touring bands & parades or just reading your favorite book or magazine. Blue in stock for immediate delivery. Black or Silver in 7 days.