Vinyl record amplifier, suitable for MM/MC dual head, high, medium and low three-frequency adjustment. Transmission: 10hz-20khz(+/-0.5dB); 10kHz-50kHz(+/-2db) Distortion coefficient: Less than 0.05% Input sensitivity: MM: 58 mV, MC: 6.8 mV Signal to noise ratio: MM Greater than 83 dB, MC Greater than 70 dB Input impedance: MM:47 kOhm, MC:100 0hm Output impedance: 250 ohm, gain factor: MM: 40dB, MC: 60dB. Input capacitance: 300pf Input: 1 x stereo RCA, 1x5-pin DIN(DC IN PHO - 300). Output: 1 x stereo RCA, 1x5-pin DIN(DC OUT PHO - 300ps). Maximum power consumption:10 watts Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on./ EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC110V/AC220V Color:Black Material:Metal Package Contents: 1 * Record Player Amplifier 1 * Power Adapter 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.