The Samson MD1 Pro Mono Passive Direct Box combines premium sound circuitry with durable, roadworthy construction, providing high-quality solutions for line, instrument and speaker level signals. The MD1 Pro allows balanced lines to be sent from your instrument long distances without inducing noise. The MD1 Pro features Samson’s STLX Mu-Metal shielded transformer that delivers an extended, flat frequency response with ultra-low distortion and superior protection against hum and RF interference. UK/EU Power supply included: NoBattery Operation: YesType: DI BoxMade in: China