The advantage of the radio:

Private code function
1-8 Private code type will keep your talking safe;and it also will block a lot of interference signals.

VOX function
With this function, you don't need to press the PTT button when you are busying.

non-detachable antenna
Carry easily and will not worry about antenna broken, it work stable.

Crystal voice and long range
Empower your business with a faster and crystal communication way.

Emergency alarm
Easy to set up and will keep your safety when you work alone.

Specifications:
Dual band or Single band: Single band
Dual frequency or Single frequency: Single frequency
Frequency :FRS
Channel Capacity: 16 Channels
Battery Type: 1100mAh Rechargeble Li-ion Battery
Operated Voltage: 3.7 V
Antenna Impedance: 50?
Operated Temperature: -30°c-+60°c
Plug: 110V-240V AC Wall-wart Type A

Feature:
Emergency Alarm
Scanning
Busy Channel Lock
TOT(Time-out Timer)
Squelch
VOX Function
CTCSS&DCS Encode/Decode
Battery Save Function
Low Battery Prompt

Package Details
4 x RT21 Walkie Talkies
4 x 1100mAh Li-ion Battery pack
4 x Charger
4 x Belt Clip
4 x Sling
2 x English User manual

Note :We will send you two boxes, every box has two radios