Specific parameters:

1) Monitoring area: 80 to 1600 square meters
2) Frequency Response: 200Hz ~ 10kHz
3) Sensitivity:-60dB
4) Output impedance: 600 - 1000 ohms unbalanced
5) voltage: DC 3.3V-6V
6) Operating Current: 2mA
7) Dimensions: L = 14mm; D = 4.2mm
8) weight: 20G

Package:

1 * SOUND PICKUP SERIES
1 * RCA cable (Only one cable, if no choice, we will ship at random)  
1 * AC adapter