Audio Recording Surveillance Sound Monitor Pickup - White (6~12V)
Color: White - Material: Plastic - Voltage: 6~12V - Frequency range: 200~10KHz - Frequency response: 2.5dB - Monitor area: 5~150 square meter - Cable length: 34cm - With adhesive on back - Suitable for different types of supervised listening environment such as bank prison examination place - Comes with English manual