Koolertron(TM) In Ear Stage Wireless Monitor System Only Receiver
Feature:Stereo audio transmissionAdjustable UHF radio frequency for interference-free receptionPowered by 2pcs AA batteries (not included)Low power consumption circuitryPower switch with volume control for ease of operationMultiple sets of receivers can operate with a single transmitterSpecification:Carrier Frequency: 432.6MHz-434MHzFrequency Response: 50Hz-17kHzS/N Ratio: ＞45dBPower: ≤10mWTransmitter Power Supply: DC 12V/300mAReceiver Power Supply: 2 x 1.5V AA Alkaline BatteryReceiver Operating Current: 50mA20mAChannel Separation: ＞30dBOperating Range: Approx. 30mPackage include:1x Receiver1x Earphones