This 6.35mm/ sound isolator features double channel input/output with complete physical isolation, effectively eliminating ground loop noise and interferences. With frequency response of 20Hz- 25kHz and less than 0.7dB loss, it delivers high clear sound . Constructed with durability metal housing, this sound isolator with metal casing ensures long last while remaining portable for mobile sound setups and stage applications. Designed for professional sound equipment, this isolator provides 600Ω impedance balance/unbalance conversion between channel. It effectively blocks ground loop currents, prevents electrostatic damage, and removes digital artifacts from sound in studios. low noise sound with this professional isolator that eliminates humming and buzzing sounds caused by ground looping. Keep it with a dry cloth and avoid liquid exposure. Store in a dry to maintain optimal insulation resistance of 100MΩ at DC1000V.