New Upgraded version Takstar wpm-100/ wpm 100 UHF Stage Wireless Monitor System In-Ear earphone Wireless Stereo 1 Transmitter +2 Receivers， support 3 selectable channels，UHF frequency band (780-789MHz)
Why use this stage monitor system ?
A monitoring system is any system that provides a mix of audio sources to a performer on stage. Traditionally， monitors were loudspeakers placed on stage directed toward the performer (often called floor monitors or wedges). Depending on the sophistication of the audio system， they may be more distracting than helpful to their singing. Since performers wear an IEM in each ear， they can also hear a stereo mix if a particular monitor system allows it. This can allow additional definition of the audio by panning different elements to each ear. Recent advances in this technology also allow the user to incorporate an ambient feature， allowing them to adjust the amount of ambient noise filtered by the IEM.
One additional consideration for mixing IEMs is that while getting rid of floor wedges can improve the overall clarity of the mix for the performers and decrease the overall volume on-stage， one important piece that is often lost is crowd noise. It is not uncommon for a microphone to be placed near each side of the stage， facing out to the audience， to provide a way to get some of the crowd noise back into the performers\' IEM mixes. Larger live shows could have several microphones for this purpose spread across the front of the stage， which could also be sent to a multitrack recording device used in an outside broadcast production truck， or other destinations.
Product Features:
-UHF frequency band (780-789MHz)and PLL frequency synthesized technology for stable working performance
-3 selectable channels (UPGRADED)
-Powered by 2pcs AA batteries(NOT included)， low power consumption design for long playtime up to 30 hours
-Multiple sets of receivers can be operated with a single transmitter within the operating range
-Dynamic expansion circuitry for high S/N ratio
-Complex anti-interference circuit for using 3sets at the same time without mutual interference
-Small size for easy carry， and say goodbye to heavy monitor system ，Unlike most traditional heavy stage audio system.
-It supports independent microphone input and an external audio source such as CD， MP3，Cellphone;
Application:
Recording studio monitoring， on stage monitoring
Specifications
Carrier Frequency: 780MHz-789MHz
Frequency Response: 30Hz-16kHz
S/N Ratio:>50dB
Power: ≤10mW
Transmitter Power Supply: DC 12V/300mA
Receiver Power Supply: 2 x 1.5V AA Alkaline Battery
Receiver Operating Current: 50mA±20mA
Channel :3
Operating Range: Approx. 50m
Charger adaptor input: 220V 50Hz
Charger adaptor output: 12V 300mA
Package include:
2x Receiver
1x Transmitter
2x Earphones
1x 6.3mm adaptor
1x Audio cable
1x 12V/300mA adaptor
1x User manual
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