Handheld microphone + wireless receiver VHF high quality system

NA-836, 2 handheld microphones + wireless clip system with VHF system, reaches a distance of 50 meters in open areas, suitable for schools, training yards, and events. Technical specifications: - Model: NA-836 - Microphone: 2 wireless single handheld microphones + single clip system, VHF system - Power supply for the microphone: 5.5 volts, type: 2 AA batteries for each microphone - Estimated distance: 55 meters - Frequency range: 275 Hz ~ 255 MHz - Sensitivity: 0.5 decibels - Frequency response: 55 Hz - 50 kHz