DNA QMIC4 wireless microphone 4x handheld transmitter receiver sound system UHF 518-542 MHz set

Technical specification:
Microphone type: dynamic, vocal, handheld
Polar pattern: cardioid
Modulation: Π/4-DQPSK
Frequency range: UHF 518-542 MHz, 4x24
Sampling rate: 48 kHz
Data transmission speed: 204.8 kbps
Dynamic range: >90 dB
Total harmonic distortion: <0.1%
Signal transmission: wireless (infrared)
Audio transmission delay: <3 ms
Signal-to-noise ratio: >96 dB
Frequency response: 30-20000 Hz
RX sensitivity: <-94 dBm
Unique ID address: yes
Control panel: LCD display + 11 buttons
Power supply type: mains/battery
Receiver power supply: AC/DC power adapter
Microphone power supply: 2 AA batteries
Receiver power socket: DC 12-18V
Inputs: 2 BNC antenna
Outputs: balanced XLR (Balance A, B, C, D), unbalanced 6.35 mm jack (MIX OUT)
Packaging dimensions: 50 x 31.7 x 6.6 cm

Included:
4 handheld microphones,
8 AA batteries for handheld microphones,
receiver,
2 receiver antennas,
AC/DC power adapter,
6.35 mm jack-jack cable,
user manual (PL/EN).