Bluetooth® Headset & Intercom for Motorcycles & Motorbikes Features Bluetooth® 4.1 Bluetooth intercom Range up to 1.6 km (in open space) Four-way conference -Gegensprechanlage teleconference with participants over the intercom Together listening to music FM radio with station search and 10 station presets Bluetooth pairing for two mobile phones Voice announcements Easy operation by Turn /push button Bluetooth stereo headset for Bluetooth audio devices such as MP3 players or navigation systems Rich sound thanks to the integrated audio booster Advanced noise reduction Speed ​​Dial Smartphone app for iPhone and Android Weatherproof Talk time: 12 hours Charging time: 3 hours Upgradeable Firmware Supported Bluetooth® profiles Headset profile (HSP) Hands-free profile (HFP) Advanced Audio Output Profile (A2DP) Profile for remote control of audio or video equipment (AVRCP)