Am folosit-o cred ca de 3-4 ori de la achizitie.
Specificatii tehnice:

Frecventa de operare: 2.4 GHz ISM
Interval dinamic: 90 dB
Raport semnat / zgomot: 80 dB
Raza de operare: pana la 120 m in conditii ideale
Frecventa de raspuns; 20 Hz - 20 kHz, ± 1 dB
Digital Sampling: 16-bit/48 kHz
Latenta: 14 ms
Viata acumulator: 300 Cicluri
Tip acumulator: Lithiu-ion
Incarcare: USB 5 V

b>Receptor

Putere: 10 mW
Nivel maxim iesire: -14 dBV
Conector microforn: 3.5 mm dual-mono/stereo
Conector casca: 3.5 mm
Iesire impedanta microfon: 600 ohms
Casca: 16 ohms
Autonomie acumulator: 16 ore
Timp reincarcare acumulator: 3 ore
Dimensiuni: 48 x 79 x 14 mm
Greutate: 68 g

Transmitator

Putere: 10 mW
Conector microforn: 3.5 mm mono TRRS
Conector auxiliar: 3.5 mm
Impedanta microfon: 2.2 kOhms
Impedanta aux: 10 kOhms
Intrare: 300 mV RMS
Autonomie acumulator: 11 ore
Dimensiuni: 48 x 79 x 14 mm
Greutate: 62 g

Microphone

Tip microforn: Electret condenser
Polar Pattern: Omnidirectional
Frecventa microforn: 30 Hz to 20 kHz
Sensibilitate: -46 dB at 1 kHz (0 dB=1 V/Pa)
Impedanta: 2.2 kOhms (at 1 kHz)
Voltaj: DC 1-10 V
Conector: jack 3.5 mm
Lungime cablu: 105 cm