When buying any musical instruments or gadgets, better to check the items first before buying. You can go to a nearby store but if you're too busy, you can check it online. It is even easy to do it these days because aside from checking the price, you can also see the features or specs. And there are a lot of stores online that will go on sale even with their bestseller items. Another thing is that you can always read the reviews of other buyers. You will know from them if the item is worth buying or not. So, if you are simply looking for a g5 pedal for your guitar, I recommend that you browse online because a lot of sites are offering this kind of gadget and will even help you with its uses.