Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: How do you turn it on, once it is turned off? I cant seem to turn this radar on after disconnecting it for 2 months
Document: If we forget to turn it off, we have it set to go to sleep after 2 hours. But sometimes we will be on a long drive and it will just go into power save after 2 hours on the road and need to be turned back on. But, that's minor, and may be a problem with the outlets in our new car. This thing functions great and has saved our butts several times.
I got this detector about 2 months ago. Since then it has saved me a couple of times from radars.I think it is not so good when the signal comes from the back of the car. Im some city areas it detects a lot of signals, false alarms but I preffer it instead of being catched speeding. It has helped me to be aware of the speed Im driving everytime I hear the radar alarm, real or not. It is not the best but is good for the price.
I bought this 2 months ago, works great. Dependable range, strong alert, good options. Have recommended it to friends. A good unit in the middle price range. Thanks.
I was always a beltronics fanboy until my last high end unit an rx65 pro. after a few months it started getting flakey, pop alerts and laser alerts when the unit was turned on in cold weather. when driving into the sun the laser alert would go off constantly.
I don't mean a little bit, but a lot. I have everything turned down as far as it will go. As in, city 2, filter 2, etc. Which helps some, but this thing will drive you crazy if you don't dial it in right away. Pretty much just went off 85% of the time, sometimes other cars would set it off. Or large box type trucks going by would trigger an alert.
I checked many internet sources before deciding.During XMAS 2010 I drove around 20 hours back and forth, including states such as GA, SC, NC, VA, DC.On the road, not many false alarms... figured filter 2 works nice to eliminate interference. A cop coming from a rest area triggered KA band with voice and frequency display, enough for me to slow down a bit. When crossed to VA, I turned it off and moved it to the trunk.
I bought this radar detector in May and it worked fine for about 4 months and now for the last 4 months the speaker has decided to only work when it wants to, I travel a lot due to work and just have this to keep me reminded about the speed limit but it is no help since I have no idea when it is detecting a radar or not.
I have the pro 78 and the new pro78se doesn't even come close to the performance of my old one. will not pick up road side radar signs. ka band has about a 2 block range. I might as well not even use it.
I have been a fan of Whistler Radar Detectors for a long time. I have owned 5 going back several, several years. Police get better equipment, we get better equipment. Well, I can say starting with the Pro 68SE I had that things are going downhill for Whistler. The speaker in that blew after only a few months and they wouldn't fix it, so I picked this up because I didn't want to change my direct wiring.
Unless you are driving a Ferrari or a Porshe and have $2,000.00 to spend on a state of the art radar detector I recommend this one as a best bang-for-your-buck deal out there! The only reason I didn't give it 5 starts is the short amount of time I have had to evaluate the product. Happy Motoring ;o)
Answer: The volume button on the left side you push it in lightly.  I had a issue with the screen not lighting up after i had mine off for a while.  Unplug it, plug it back in give it a second and then lightly off that button in.  worked for mine.