Wearable Wristband 4GB Digital Voice Recorder Wrist Watch, One Button Long Time Recording(Green) worth to buy? Thanks for it if those of you who have purchased Wearable Wristband 4GB Digital Voice Recorder Wrist Watch, One Button Long Time Recording(Green) could share about what you think of the product. I would love any extra info, as it is quite pricey as $29.30 and I just want to know it is good before paying for it.