NOTE : (Detailed operation method, please read the instructions carefully)

There is only 1 Headset unit in the package,
if you want to intercom with others ,you need to buy 2 or 3 units.
(It can support Max 6 Units connection )only support 2 user intercom at the same time,max 6 users

Features:
Two users full duplex talk,The host intercom can pair with other 5 intercoms spearately in 5 groups, 
and switch among one of these 5 groups to communicate.Once pairing is successful,the intercom 
will automatically enter the real-time communication when powered on.
Main Function:
1.Two users Full duplex Real-Time communication
2.No need hot keys, easy to use
3. Memory pairing, simple and easy.
4. Latest chipset from Amercia,HI-FI sound
5.High-power headset, which can be used In a noisy environment. Stereo HI-FI headset
6. National Level 5 waterproof standard
7.1200m max communication distance, Max Speed up to 120KM/H.
Attention: The actual distance depends on the weather, terrain, possible obstacles 
(large vehicles or invisible buildings etc.)
Phone functions:
Auto-receiving the cellphone call when you are in intercom channel.
Intercom functions:
Two users full duplex talk,The host intercom can pair with other 4 intercom spearately in 5 groups, 
and switch among one of these 5 groups to communicate.Hands free.
Music function:
Stereo music/audio transmits from A2DP enabled phone/MP3/GPS),
Advanced A2DP & EDR bluetooth 3.0 profile. 
Clear Audio Compatible with other bluetooth devices:
Can be compatible with GPS, MP3, Smartphone, tablet bluetooth port, Use listen to music, 
GPS voice navigation, and other functions
Specifications:
Bluetooth version: Bluetooth 3.0
Chip: CSR BC5
Battery capacity: 550Mah
Speaker power: 0.25W
RDS: NO
Battery type: polymer lithium battery
Waterproof grade: National Level 5 waterproof standard
Automatic volume adjustment: no
Operating voltage: 3.3v-4.2v
Talk time: 8h
Working temperature: -10-45 degrees Celsius
Charging time: 2.5hour
Standby time: 150hour
Charger Specifications: DC 5V 500MA
Package include:
1* full duplex bluetooth intercom Headset
1* Armband
1* USB charging line