Here's what other sites are saying:
Trek out into the untouched white world with the ARVA Axis Avalanche Beacon so you're equipped with its simplicity during multiple burial scenarios and to keep yourself covered with its new safety features. Three antennas provide digital or analog searching, while the advanced easy-to-read LCD display guides you through the primary, secondary, and pinpoint search. While in search mode, a motion sensor picks up your movements and switches you back into transmit in case you get buried in a secondary slide.
The Arva Axis is a versatile device with many technologies and features developed for the Link. Features include: digital and analog search modes, a marking function, and a meter search width band. The Axis is a necessity for advanced backcountry skiers.