[Updated 1 Sep 2014: My Kairui trimmer broke down after one year + without any warning. I tried dismantled it thinking that the battery had failed but found it hard to assemble it back due to a few small parts that fell apart and it was very difficult to fix it back. So I placed another order for another set. This time the new set’s charging light does not seem to work though the charging is ok. Looks like Kairui has a serious quality issue that it needs to address if it wants to have our business going forward. I found another alternative brand that is worth looking into, check out: AngCheng EC-701]
Highly recommended an affordable hair clipper from Ebay that cost less than US$20 (16.7 to be exact, Qoo10 is selling at SGD$14.9). The brand is Kairui, I have been using it for the last one year and highly satisfied with the design, useability and reliability. I have used a few cheap hair clipper before but none is useable like this one. It is silent in operation, the battery often retained charge for a long time and can last easily more than 20min (may be longer but I normally finish the cutting in less than 10min), quality feel despite made in China. Highly recommended.