U4 OK-3B HM-4035 Professional UHF Wireless Hidden Headset Microphone for Teacher

U4 OK-3B HM-4035 Professional UHF Wireless Hidden Headset Microphone for Teacher 

FEATURE :

*use UHF 500-980MHz  range ,adopt PLL combined technology ,and the transmitter power is adjustable ,they can be used several sets at the same time without interference  .

*CPU control with LCD display makes operation easy and performance outstanding .

*Use multi-channel with high frequency to avoid the interference .

*With audio compressing-expanding technology ,the machine can reduce the noises and increase the dynamic range .

*Having backsound restrain function can avoid backsound scream

*The receiver adopt multi-level high frequency enlargement .so and has the high sensitivity .

*Multi-level noise supervisory circuit .Special with the tone locked system make the machine have a strong anti-jamming characteristics .

*Using the best parts and CPU ,to keep the products with the perfect performance .

*100 meters in best condition ,60 meters in normal condition .The largest using range is above 100 meters in the spacious place ,50 meters for the ideal using range .

TRANSMITTER

Bodypack with Condenser Microphone

Operating frequency :500-980MHz

Transmitter power :H 10dBm ,L 0dBm 

Bodypack Power supply :2 * AA batteries

Standing time :about 8 hours

RECEIVER

Operating frequency :500-980MHz (adjustable)
Adopt CPU Contriol
With PLL Combined Techology
With 32/96 Channels for free selection
Multifunctional LCD, Special AF Sound Pressure & transmitter battery voltage display
ACT/IR Function
Power adaptor supply voltage :AC110/230V  50Hz/60Hz
Operating voltage :DC 13.8V 1500mA
Special sensitivity of receiver selective switch 
S/N ratio :>105dB
T. H. D distortion :<0.5%
Frequency response :40Hz-18KHz
Noise locked+ pilot tone locked
Audio Frequncy response expand and auto electricity level control circuit.

Package:

1 * Receiver 

4 * MicrophoneTransimitter ( Battery Not Included)

1* Adaptor

1* Netrual Package

Standard Optional Transmitters for choice :

or if u want more better quality mic, then pls choose below with different  prices:

Photos :