The features of this wireless tour guide system:

117 channels; 195MHz-230MHz ( 72MHz-76MHz for USA market is also available).
Avoid the interference of other frequencies automatically.
The smallest and lightest.
The cleanest voice transmission.
99 IDs allow 99 groups to use simultaneously.

Technique Specifications:

Transmitter:

Frequency Range: 195MHz-230MHz
Power Supply: DC3.7V
Frequency Response: 50-18000Hz
S/N Ratio: >90dB (Typical)
Frequency Stability: +/-0.005%
Modulation Deviation: +/-75kHz
T. H. D.: <0.3% @ 1kHz
Battery type: Built-in Lithium battery
Battery life: 15 hours
Talk range: 100 meters

Receiver:

Frequency Range: 195MHz-230MHz
Power Supply: DC3.7V
Frequency Response: 50-18000Hz
S/N Ratio: >90dB (Typical)
Frequency Stability: +/-0.005%
Modulation Deviation: +/-75kHz
T. H. D.: <0.3% @ 1kHz
Battery type: Built-in Lithium battery
Battery life: 15 hours
Talk range: 100 meters

Product features:

Portable and wireless
PLL synthesized design, with high frequency stability; Digital mute-locked technology, no any interference.
Unique anti-interference circuit, avoid the interference from other frequencies automatically.
99 IDs allows 99 groups to operate simultaneously at the same place. One transmitter can carry any number of receivers.
Built-in rechargeable Lithium Battery, inner integrated circuit.
+-75K modulation bandwidth, big dynamic range for voice.
LCD display, easy to operate. Adjustable volume.
Communicating over distances of 100 meters open field.

Our advantages:

Compare with loud-speaker:

Good voice transmission, anti-interference. The guides speak to their groups at a comfortable conversation speech level. Listeners can hear every word clearly and easily, even in noisy surroundings, and the presentation doesn't disturb others.

Compare with 2.4G tour guide system:

Our Anders wireless tour guide system has strong transmission ability to pass through obstacles, the listeners can still hear every word clearly even the listeners and the guides are separated by obstacles like doors. But the 2.4G tour guide system does not have this strong transmission ability, the transmission will be interfered when there's an obstacles, the voice will be missing or disturbed.

And the 2.4G frequency is a global used frequency, there's WIFI everywhere nowadays, it is easy to be interfered by WIFI.

Compare with the tour guide system with FM frequency:

The tour guide system with FM frequency is easy to be inferred by the FM radio station, and it can not avoid the interference automatically, you have to readjust the frequency, which is troublesome. Our Anders tour guide system can avoid any interference automatically.

Furthermore, our tour guide system is the smallest, thinnest and lightest one in the world, it won't bring you any burden, which is also one of the reasons that the listeners love it.

No matter you are visiting a crowded tourist attraction, or you are visiting a noisy factory, Anders wireless tour guide system from Zhong Shan Anders Electronics Co., Ltd can help your customers hear every word clearly from the guides, leaving them a perfect impression of the visit.