The Pulse Plus headset speakers plug into most helmet communication systems, audio devices, and Smartphones with a 3.5mm standard audio jack. The glove friendly, in-line volume control puts operation of your device at your fingertips: change tracks, adjust volume, mute, and even answer phone calls.* In-line microphones capture crisp audio, while speakers deliver hi-fi sound, extreme bass, and unsurpassed music quality. Tool-free installation makes the upgrade to the Pulse Plus easy!Extreme Bass and Clean SoundOur audio engineers worked feverishly on the Pulse Plus to bring you high-fidelity sound in a convenient package. Pulse�s sound drivers are designed for maximum performance and deliver the best sound in helmet audio. The volume control and microphone combination also offers clear voice audio while the speakers deliver exceptional music playback.Easily Transfers From Helmet to HelmetThe Pulse Plus design allows you to swap your speakers quickly from one helmet to another without tools. Stay connected to your music and phone calls as you switch from a morning ride on your board to an afternoon ride on your bike, and anywhere in-between.