The BC Link(TM) Two-Way Radio 1.0 provides strong group communications, which is the key to any successful day of backcountry adventuring. Find separated friends, communicate plans, and share observations in real-time with the BC Link group communication system. Glove-friendly controls are optimized for easy handling. The Smart Mic user interface is located at your fingertips, meaning you never need to dig the radio out of your pack to change settings. The Smart Mic unit provides a push-to-talk button, on/off switch, volume control, battery indicator, loudspeaker, channel selection, and an earphone jack. Each radio base unit comes with a long-lasting rechargeable lithium-ion battery. BC Link two-way radios operate on 22 FRS channels + 121 sub-channels for minimal interference to deliver near-constant clarity when conveying critical information. BC Link radios integrate into all Float(TM) avalanche airbags and Stash(TM) backpacks. If you often spend an extended time in the backcountry, BCA recommends that you purchase an additional BC Link 1.0 battery, so you can have an extra if your battery power gets low and you do not have access to re-charge.