BOSS SD-1 Overdrive pedal, Made in Malaysia. In near-mint condition—clean appearance and fully functional with no history of repairs. Features three control knobs (Level, Tone, Drive) and a "Check" indicator light. Equipped with standard input and output jacks; suitable for both electric guitar and bass. Delivers a classic, warm tone—perfect for both practice and live performances. Sold as the pedal only; no box or power adapter included.