Product: Anti Thief Sound Security Alarm Electron Disc Brake Lock 6mm Pin For Motorcycle Motorbike Safety Sport Racing Bike (Blue)
Overall sentiment: negative
Customer reviews:
Piece of crap 
 Wouldn't recommend. The actual tumbler that locks is not such great quality. I use the long metal bit of a leather belt to pick the lock. The alarm stop working with in a month of purchase. It's a neat little design, not terrible secure and it didn't last very long. Save your money and go up market if you can. 
 Don't waste your money on this pot-metal junk, get a real steel lock. 
 I really thought this was going to be a great lock, especially for the money, but it broke two days after I first used it. The critical metal part is some kind of cheap pot metal and will easily break. I threw this one in the trash and bought an Urban for about $60. It works much easier, is more reliable, louder and much more robust. If you value your bike, invest the money in a lock that will actually deter thieves. 
 The lock isn't horrible but the quality is less than I'd expected. Within a week the alarm went from blaring to nearly inaudible, it doesn't fit the disc brake on my Yamaha very well either. If it was maybe a half inch deeper and the pin a little larger it would be great for me. For those with smaller bikes, who don't park and leave their bike for long periods and who are close enough to hear that alarm it would work well. Just not for me. 
 I should return this. This product could be foiled by a pocket Swiss Army Knife. The arming function of this alarm simply gets activated by inserting the key into the hole on the bottom of the lock. I pulled out my little pocket Swiss Army Knife and armed/disarmed with it. Then I removed the top of the external case by using same Swiss Army Knife to unscrew the two phillips head screwdrivers. Not exactly an engineering marvel, but I thought I'd try it for a bit to see what I think of it before upgrading my alarm. My last scooter was stolen, but it's my estimation this solution tells common criminals to move on. Uncommon crooks are going to steal your stuff anyway. 
 This is not worth any stars. Infact, negative 10 stars. I trusted this piece of junk for about 3 months. Forgot it was on there and barley gently rolled bike backwards and I heard it fall to the concrete floor. WoW.... It was like so easy to break. What a piece of s*** I intend to load pictures. 
 It does not give me time, once I set the alarm, to put it on my brake and lock it on. The alarm goes off too quickly!
I sent a response request to the company, but they did not reply. 
 Please, save you some dollars and don't buy it. I broke it 2 weeks later, 
 Yes, it makes a lot of noise, but it is not good, you can arm and disarm it with any object.  how good is that? it is hard to arm when it is on.
I forgot it on my bike and moved and it broke a piece of the wheel fairing.  if it was a Xena, it will feel the vibration and make noise ...

udpate 11/2/2015.  I couldn't open the lock, it was opening half way, I had to pry it with a big screw driver, it is garbage.  don't buu it 
 This can be easily disabled with any round object.  I would not buy again.