Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: How long will a regular 9v battery last ?
Document: I have used this alarm for a few years now. It is in our laundry room and I hear it fine upstairs. It is enough to wake me up. I have used rechargeable batteries, but they need recharged every month or so. Not worth the trouble (low battery signal goes off - often at night). Recommend regular alkaline 9 volt batteries. They will last over a year (if no alarm sounds).Great deal for the money!
Both alarms allowed us to catch the leaks early and before any serious damage was caused.Each alarm uses one 9v battery, which gets changed when I change the batteries in the smoke detectors (twice a year). The alarm is loud, so you will hear it. The alarm has a distinctive pattern, so you'll know it is not the smoke detector. Seems to beep Morse code for the letters "SOS", three long beeps, three short beeps and three long beeps again. It repeats this pattern over-and-over.I am buying another set to put one under each of our bathroom sinks and one under our dishwasher.I am very pleased with these alarms.
These detectors are decently loud and seem to do the job.Not sure who long the battery will last though.
Great product. It has saved me from a lot of water damage. The battery seems to last a long time.
I have six of these at homes. One under every sink and water type area. The nine volt batteries last a long time and when the battery is dying, the device makes a low sounding beep. Replace the battery and good to go. The have saved me big messes twice so far.
This one works pretty good but the battery life in mine didn't last long and the biggest problem is you almost need a puddle of water to have it go off. Great deal for $10 but I upgrade and spent a bit more ($30 - I know, expensive huh) and got a more  durable/reliable one at [...]
I ordered and received 3 Leak Detectors made by Zircon. It uses 9 V battery. Before placing by my water heater and Furnace, sump pump , I tested with water droplet & it worked well with loud siren. I am not sure how long the battery will last but it is very sensitive and easy to use and it is cheap insurance for checking water leaks.
Only time will tell how long these will last. But they work great when in the test mode. I feel much better having these in the basement and at the washing machine. The detector appears to be made well and gives a very loud screech when contacted with water. I would recommend trying the Zircon leak alert detector.
It is very sensitive because the alarm will continue until the contacts are completely dry (even if you lift it off the surface, the alarm may continue until you wipe it with a towel and allow the metal to fully dry). I've never had a false alarm so far, which is important. The alarm has only sounded when wet. The batteries seem to last a long time, haven't had to change any yet.
Also, curiously waiting to see how long the batteries last.Worth noting, I also purchased theLeak Frog LF001 Water Alarm. Pretty much the same function, only it looks cuter and comes with the required (3 AAA) batteries. One drawback of the Frog is that my kids keep moving it and it doesn't quite fit into tight spaces as nicely as this one does.
Answer: yes