NavGear Universal Bluetooth Headset for Helmets - Pairs to Cell & GPS Calling Features - This device allows users to have hands-free access to their mobile phones, supporting calling features such as voice dialing, auto receive, auto reject /hang-up calls, and last number redial. To answer calls, users can press button or set it up on auto answer (requires to setup phone to auto answer). GPS support - It can connect to Bluetostems,oth-enabled GPS sy allowing the users to listen to GPS voice instructions. Listen to Music - Users can listen to music on their or mobile mp3 music app, or Bluetooth-connected MP3 players, with built-in music controls for play/pause, and next/previous track/song. Heavy-Duty / Water Resistant - Designed and engineered for Heavy-Duty Performance. All Weather Water Resistant. Button panel is water-proof and sun-proof, while the design is durable.