I think that jokiin's advice to avoid the CDV300 was well-intended, well-made, based on personal experience, & still holds true today. I wouldn't risk $130 plus 20% VAT plus UK Customs handling costs on importing a camera from China with immature firmware & suspect hardware / peripherals.
No legally enforceable Warranty. The expense, time-loss & inconvenience of shipping it back to China if it's faulty? No thanks.
This model is for DIY tinkerers whom are happy to prise open the camera case & fix it themselves. People seeking a hassle-free product they can fit & forget should be wary.