Interview, recording microphone series

Wireless Frequency Range: 470-960 MHZ
Modulation method: DQPSK
Audio frequency response: 30HZ-18KHZ
Microphone Specifications: Condenser Omnidirectional
Number of channels: 20 channels (10 channels for A and B)
Wireless transmit power: ≤10MW
Signal-to-noise ratio: ≥90
Operating voltage: 2 AA batteries
Battery usage time: about 10 hours (depending on battery capacity) Reference distance: 80 meters (outdoor open space)
Operating temperature: 0°C to 50°°C
Storage temperature: -20°C to +55°C
Product Specifications (LXWXH): 88x63x22mm
Monomer weight: 57.5g