| ● Full duplex wireless tour guide system speaker wear the master device,and visitors wear slave devices. |
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| ● Speaker and visitor could talking simultaneously,and other visitors will hear their talking. |
| ● Each visitor could speaking by pressing “PTT”button of the slave device. |
| ● The master device with"hang up"function,it could hang up the slave device which is speaking. |
| ● Both master device and slave device built in high quality microphone. |
| ● Easy to use, just need to connect earphone. |
| ● UHF band,PLL synthesized design. |
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| ● 128*64 dot matrix double-color OLED display. |
| ● OLED display frequency, volume, microphone garn, battery, RF level, Audio level and overload prompt. |
| ● Display of frequency,volume,battery,RF level,Audio level and microphone gain. |
| ● Welcome LOGO display can be custom made. |
| ● High performance double-IF circuit design. |
| ● Adopt multi-stage high performance RF saw filter, high anti-interference performance to ensure mutiple channels |
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| can be used simultanously without interference. |
| ● Built-in high performance audio compander,crystal sound like CD. |
| ● 8 steps of RF signal strength display. |
| ● 8 steps of audio level display,and audio overload prompt. |
| ● 16 levels of digital volume control. |
| ● 21 levels of squelch sensitivity control. |
| ● 21 levels of microphone gain control,setting range as 0～+20dB。 |
| ● Quick mute function of microphone. |
| ● Slave device with automated shutdown function. |
| ● Wear by lanyard. |
| ● High capacity lithium-ion battery,continuous operating time is more than 10 hours. |
| ● Operating range is more than 100m (line-of-sight). |
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RF Carrier Frequency Range |
UHF 780-800MHz / 850-870MHz |
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Oscillation Type |
PLL Synthesized |
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Tunable Steps |
25KHz |
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| Frequency Stability |
±0.005%(0～50)℃ |
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Modulation |
FM ± 45KHz deviation,compander system with pre-and de-emphasis |
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| Intermediate Frequency(IF) |
Double-IF 110.6MHz/10.7MHz |
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Image Rejection |
>100dB |
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Spurious Rejection |
>100dB |
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Audio Frequency Response |
50～15000Hz±3dB |
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Total Harmonic Distortion |
<0.5%@1KHz ±45KHz modulation |
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Signal-to-Noise Ratio |
>90dB(A) |
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RF Power Output |
10mW |
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Harmonic Suppression |
>80dB |
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Audio Output |
3.5mm stereo |
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Volume Control |
16 steps digital volume control |
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Built-in Microphone |
Φ9.7mm,unidirectional |
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Microphone Gain |
0dB～+20dB(step=1dB,21 steps) |
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Display Screen |
OLED 128*64 dot matrix Double Color |
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Power Supply |
Built-in Lithium ion polymer battery,3.7v/1020mAh |
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Operation Time |
About 10 hours |
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Operating Temperature |
-10～60℃ |
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Dimension |
138*49*16mm |
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Weight |
65g(With battery) |
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Operating Range |
>100m (Environment dependent) |
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