One-to-Many Wireless Explanation Solution
The 2.4G wireless tour guide system consists of two guide units and an unlimited number of visitor units. Once paired with the guide units, the visitor units can hear the voices of both guides upon startup, with a normal range of up to 100 meters. If the distance exceeds the reception range, the visitor units will receive a sound prompt. A fully charged visitor unit can be used continuously for one week, meeting the needs of a typical travel journey. In addition to speech, the guide units can also play music or provide site introductions through audio interfaces.
Automatic channel allocation
Pre-set Number of Channels: 14
Strong anti-interference capability
Digital processing for audio transmission
Resistance to WiFi Interference
Wireless transmission with resistance to WiFi interference
Transmission Distance
Wireless transmission distance of over 100 meters in open areas
Additional Features
Equipped with headphone amplifier and digital volume control
Comprehensive Tour Guide Features
Equipped with audio interface, capable of playing music
Long Standby Time
Visitor terminals feature ultra-low power consumption, with standby current less than 1mA
Replicable Backup Devices
Tour Guide Terminals
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| Specification Items | Audio Transmission Module | Audio Reception Module |
|---|---|---|
Power Supply Voltage | 3.6～5V | 3.6～5V |
Current Consumption | <60mA | <=15mA |
Operating Temperature | 0 ～ +70 ℃ | 0 ～ +70 ℃ |
Frequency Range | 2400～2483.5MHz | 2400～2483.5MHz |
Number of Channels | 20 | 20 |
Modulation Type | GFSK | GFSK |
Transmission Power | 10dBM | |
Input Impedance | 1OK Ohm | |
Input Level | 2.8Vp-p(Max) | |
Receiver Sensitivity | -85dBm(Min.) | |
Output Impedance | 32 Ohm | |
Output Level | 2Vp-p(Max) | |
Audio Latency | <10ms | <10ms |
Frequency Response | 20～8KHz,±3dB | 20～8KHz,±3dB |
Dynamic Range @1kHz | 81dB | 81dB |
Total Harmonic Distortion | 0.1% | 0.1% |
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By using a pairing method, the ID of the tour guide device is written into the tourist device. When the ID of the tourist device matches that of the tour guide device, it can become a member of the cluster. There is no limit to the number of tourist devices
The tour guide device can release the binding relationship with the tourist device, achieving the disbanding function
The tour guide device can remotely shut down all tourist devices
After successful grouping, it is possible to duplicate one tour guide device as a backup
In the event of wireless interference, the tour guide's host device will switch channels, and the tourist devices and guide's sub-devices will automatically follow suit
Simultaneous Input of External Audio and Microphone Signals OR Select Input of External Audio and Microphone Signals
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