Applications: House, office, factory, hospital, school, supermarket, park, cinema, etc.
Details:
1. Antenna: Enlarge distance
2. Mic inside to get the voice
3. Power chargeable
4. Power on or power off setting
5. Touch screen for easy operation
6. Headphone Jack
7. Two speakers
8. Table stand holder
9. Touch screen
Main functions:
1. Master and substation can call each other
2. Master can broadcast to all substations
3. Master can review the old messages
4. Substation can review the last message
Parameter:
Frequency: 433.92MHZ
Working distance: 1000m (Open space)
A master can work with 200pcs substations
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