Kuumakse al. 
Specifications:
OVERALL SYSTEM SPECIFICATIONS
- Operating Frequencies: 2.4 GHz ISM band
- Dynamic Range: >109 dB (A-weighted), typical
- Total Harmonic Distortion: <0.05% typical
- Operating Range: 60 m (200′) Open range env. with no interfering signals
- Operating Temperature Range: 0° C to +40° C (32° F to 104° F) Battery performance may be reduced at very low temperatures
- Frequency Response: 20 Hz to 20 kHz
- Depending on microphone type
