This is a single Advance unit by BbTALKIN. You need at least two units for 2 way communication with another person. You will also need a speaker & mic accessory to communicate thru this device.

You would purchase this item to replace a damaged main unit or if you want to add a person into your existing communication circle.

Comes with:

x1: Advance Unit
x1: Waterproof Case
x1 Marine Mount
x1 Double Sided Tape
x1 Snow Goggle Mount
x1 Falling prevention Strap
x1 Alcohol prep

MAIN UNIT SPECIFICATIONS:

Maximum distance: *open field 1mile (1600m)
Operating time: 15h
Stand by time: 700h
Charging time: 2h
Water proof level: IPX7

bluetooth Ver.: 3.0
Profiles: HSP, HFP, A2DP, AVRCP
Radio authentication: TELEC, CE, FCC

BbTALKIN Advance Unit