Avalanche Beacon bca TRACKER DTS I haven't been backcountry skiing, so I removed the batteries and stored it. I've put batteries in and confirmed it works. I only have the main unit, but I was able to turn it on, trigger the alert, and switch between SE mode, TR mode, and SP mode without any problems. The battery compartment terminals show no corrosion or leakage. Used less than 10 times. The contents are all shown in the photos. There is an instruction manual. There is no box. Thank you for your consideration. *I will be unavailable for shipping from January 9th to 12th due to skiing.*