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  • UHF Wireless Microphone(Two Lavalier)
  • T-521UL


* Using UHF ultra-high frequency double true diversity reception, and USES the DPLL multichannel digital phase-locked loop frequency synthesis technology.

* Provides each of 200 a total of 600 channels to choose, true diversity receiving, effectively avoiding the phenomenon of fault frequency and to extend the receiving distance.

* With a magnitude 8, according to 8 audio level display, according to the audio level, according to the channel menu mute.

* Balanced and unbalanced output port, two choices to meet the needs of different device to connect.

* LCD liquid crystal display can also show channel number and working frequency. Light touch button control is simple, which let users to use it more conveniently.

* Strong anti-interference ability, can effectively restrain noise caused by th external interference and same frequency interference.

* Infrared frequency function can be convenient, shortcut of the transmitter and receiver synchronization.

* Enough intermediate frequency, Relaxed singing, sounds with magnetic and mixed thick feeling, the essence of the vocal microphone sound.


Frequency indication

Word frequency

640-857MHz (the applicable frequency depends on the

local regulation)Broadband FM

Number of channel


Channel spacing


Frequency stability

Within ±0.005%

Dynamic range


Maximum deviation


Audio frequency response

80-18KHz (±3DB) (frequency response of the whole

system depends on the microphone unit)

Comprehensive signal to


noise ratio


Comprehensive distortion


Working distance

About 100m (working distance depends on many

variation which includes absorbing, reflection and

interference of Rf signal)



Receiver Indication

Receiver mode

Double super heterodyne

Intermediate frequency

110MHz, 10.7MHz

Antenna access



12dBμV (80dBS/N)

Adjustable range of Sensitivity


Spurious suppression


Max  output level


Power supply mode

DC 12~18V 500mA input


Transmitter parameters


Moving Coil Condenser microphone (Collar microphone,

Headset microphone)


Internal helical antenna of handheld microphone, the

hanging transmitter adopts1/4 wave-length whip antenna

Output power

Max power 30Mw;Min Power 3Mw

Spurious suppression


Power supply

2 section 5,#1.5V alkaline battery

Battery service life

About 10 hours under 30mW,  about 15 hours under 3mW

Function features

Adopting true diversity reception mode, effectively

avoiding frequency phenomenon and the extension

of the receiving distance

Quality characteristics

Enough intermediate frequency, Relaxed singin, sounds

with magnetic  and mixed thick feeling,  the essence of

the vocal microphone sound


3d product demo