bluetooth intercom,bluetooth helmet intercom 1.3GPP with DSP solution 2.BlueAnt Bluetooth 3.Water-resistance, FM functioned bluetooth intercom,bluetooth helmet intercomInformation:The BlueAnt Bluetooth Interphone allows you to ... 1640 feet operating range for intercom communication between 2 Interphones* CE, FCC, BQB, Ctick, RoHS/WEEE Compliant* Headset profile, Handsfree profile, A2DP ...