T/T(bank transfer),Western Union and Moneygram,cash
1 Carry suitcase stores 50 receivers and 2 transmitters
1 Carry suitcase stores 2 portable charger
1 Carry suitcase per box
4 Boxes per Carton
Transport by DHL,EMS,TNT,UPS,FEDEX,by sea,by air
1.Reply your inquiry in 24 working hours 2.Your Logo is available,OEM and ODM are welcomed 3.Delievery the goods to our customer all over the world with speed and precision 4.Offer customers the lowest price with high quality device.
5. 24 Months warranty for whole system.
Our advantage:
Factory produce and sell directly
10 years experience
High quality and competitive price
Fast delievery in 3- 5 days
Two years warranty
Tested one by one before shippment
SZ Wise Unite System Technology Co.,Ltd is a professional manufacture of tour guide system with 9 years experience in Shenzhen,China, we mainly research and develop to produce high quality and various type of tourguide equipment,our products are widely used in the different applications of travel company,factory,school,conference and government all over the world.welcome your inquiry our products and hope to establish good cooperation with you in the future.
Company Information
Comparation with other equipment:
1. What is 2.4Ghz Equipment? 2.4Ghz frequency range is 2400-2483MHZ,it's global license-free.
Items
Analogous wireless teaching system/tour guide system
Wireless teaching/tour guide system(2.4G Digital)
Working frequency
Normal analogous wireless frequency is 30~50MHZ,88~108MHZ,150~170MHZ,700~800MHZ
30~50MHZ is easily disturbed and covered by Short wave radio and long-distance shortwave.
88~108MHZis easily disturbed and covered by local FM radio station
.
150~170MHZis frequency range shared by speaker, car radio and pager radio (part of law enforcers still using pager) in public area, it’s easy to be disturbed and covered.
700~800MHZis frequency range for radio microphone, it’s easy to be disturbed and covered by thesignal of mobile.
Digital wireless system adopt the current global and legitimate frequency,2.4G band(2400mhz-2483MHZ)
The current industrial frequency is difficult up to this frequency, so this style tour guide system is not easy to be disturbed; moreover the radio of other shortwave frequency is during 3.5MHZ~30MHZ.
The frequency of FM radio station is during 75MHZ~110MHZ,the pager frequency is 150MHZ~470MHZ,the wireless microphone frequency is 700MHZ~800MHZ,these frequency are not easy up to 2400MHZ.so not easy to be disturbed by mobile signal because of the protocols inconsistency
Modulation mode
Analogous FM transmits traditional analogous radio signal, it will be easily disturbed or covered for same/similar frequency device, including motor, relay, converter, welding equipment, high-voltage wire, ect.
The bigger power must cover the signal of lower power; it’s easily disturbed by remote radio device of same frequency or bigger frequency, also easily disturbed by mobile signal.
Digital wireless device adopt strongly anti-inference modulation mode GFSK, GFSK modulation technology is widely used to mobile communication, aviation, navigation ect. The transmitter translate audio signal A/D to digital signal firstly, when the receiver got the digital signal ,then decode it and translate D/A to speech signal, It’s theoretically undistorted and no interruption, even if the frequency is same, it can’t be disturbed for different code(our company sole coding protocol)
