Input Impedance 500K ohms. Output Impedance 10K ohms. Maximum Output Level 0 dBm. Maximum Gain +30 dB. Equivalent Input Noise -100 dBm (IHF-A). Power Supply One 9 Volt Battery or external AC adaptor (AC-109).Size 125 mm, 4.9Ë(D) x 70mm, 2.8Ë (W) x 52mm, 2Ë(H). Weight 500g, 1.2 lbs." Leia mais