=============== Derrocha Servicios y Soluciones Informaticas ========================================= DEROCHA STORE ===========================DIRECTIONAL: OMNISENSITIVITY: -30+-3Db (0dB=1V/Pa at 1kHz)FREQUENCY RESPONSE: 50Hz-16kHzImpendance: <2.2koOperation Voltage: USB 5v CableLength: 1.5mPlug: USB