This radio is helpful for the following circumstances: security guard, supermarket connection, construction area indication.It is also helpful for field survival, biking and hiking.
It is very easy to use these. All you need is turn these two to the same channel (16 channel to be chosen), push a button, and you can hear from your mate.

Features:
Antenna Impedance: 50ohm
Rated Voltage: 3.7V DC
Output power: < 5W
Battery type: Li-ion battery
Battery capacity: 1500mAh
Color: Black
Dimension(Lx Wx H): 60x 33x 115mm(Not Antenna)
Weight: 180g
Dual band or Single band: Single band
Dual frequency or Single frequency: Single frequency
Frequency Range: UHF 400-470MHz
Memory Channel: 16
CTCSS/DCS function: Yes
Built-in Led torch: Yes
Low battery alarm: Yes
Power saving function: Yes
Chinese and English voice prompt: Yes
VOX Function: NO
PC software programmable: Yes

Package List:
2 x Portable radio
2 x Earphones
2 x Antenna
2 x Li-ion battery pack
2 x Belt clip
2 x sling
2 x User’s manual

Note:Please do not use this walkie talkie with other brand’s walkie talkies.

Warranty: This Proster PST78 Two-Way Radio Provides 18 Months Warranty.

Product Features

• (1 Pair Walkie Talkies) UHF 400-470MHz, 16 Channels — Enables to connect each other in a long range of about 2 Miles (Max in OUTDOOR Open Field, it exactly depends on your surroundings).
• DCS and CTCSS Function — Can shield external interference signal and reduce noises.
• USB Charger — The USB Charger is very Convenient charging, It can use a PC, Car charger, mobile charger, and most of USB port to charge it.
• Bulit-in LED Flashlight — You can expose your location to ask for help in emergency.
• Wide Application — This walkie talkies is perfect for security guard, supermarket connection, construction area or field survival, biking and so on.