WALK RAZOR WALKIE TALKIE Voice Activated Transmit (VOX), allows for hands-free communication up to 3 miles. Walkie Talkie Attachment has 22 channels and 99 sub channels for your family and friends to join! Custom designed to integrate onto the Walkers Razor muffs (Muffs sold separately, will not work with Razor Quads) 22 Channels 2-3 Mile range Push to Talk / Voice Activated Powered by 2 (AAA) batteries included Battery Life: 12 hours