User's Manual

32
CAUTION
1.Please use our original audio signal cable which is
equipped, it’s more compatible with the wireless
microphone, and make the sound better.
2.The figure given is only the approximate value that
applies when there are no obstructions between the
transmitter and receiver. This distance will vary
depending on metal objects, people and other
obstructions and on the signal strength.
3.Battery life may vary depending on the type of
battery used.
IMPORTANT
• If you do not intend to use the wireless microphone
for a long period time, please remove the batteries
from both the transmitter and receiver.
• Do not touch the lavalier/lapel microphone,
transmitter and receiver while recording, as this will
cause noise to be recorded.
• Do not let the transmitter close to high-voltage
equipment or to devices that emit strong electrom-
agnetic fields, otherwise, it may cause the noise to
be recorded.
• Do not use or leave the transmitter and receiver in
hot, humid places.
• Do not leave the receiver attached to the camera
when storing the camera in a case.
• Do not mix up to use the transmitter and receiver.
WARNING
• Keep the wireless microphone out of the reach of
children.
• Never use leaking batteries and never expose
batteries to excessive heat or fire.
GFSK (Gauss frequency Shift Keying)
2.4 GHz (2405-2478MHz)
35Hz-14KHz±3dB
84dB or more
0.05% or less (32Ω,1 KHz,65mW output)
3mW
32Ω,65mW
-90dB +/- 3dB / 0dB=1V/Pa, 1kHz
3.5mm mini jack
60m (197ft) (without obstacle)
TX4 Pro/RX4 Pro: 3V DC (Two AAA size batteries)
BY-WM4 PRO RXD: Supplied by iOS device
BY-WM4 PRO RXU: Supplied by USB Type-C device
BY-WM4 PRO RXD: Apple MFi Certified Lightning Connector
BY-WM4 PRO RXU: USB Type-C Connector
Receiver：3V/70mA Transmitter: 3V/70mA
TX4 Pro/RX4 Pro: 45x70x35mm (1.8x2.8x1.4”)
BY-WM4 PRO RXD: 82×30.7×12mm (3.2×1.2×0.5”)
BY-WM4 PRO RXU: 82×30.7×12mm (3.2×1.2×0.5”)
TX4 Pro/RX4 Pro: 47g (1.7 oz)
BY-WM4 PRO RXD: 12g (0.4oz)
BY-WM4 PRO RXU: 9.5g (0.3oz)