This phone is a 9-volt powered device and features a 1.8” 160×128 TFT LCD display and is made from parts worth $150. It will work regular sized SIM cards on any GSM network and is fully functional – at least as functional as feature (or “dumb”) phones are concerned. Granted that there are feature phones as cheap, if not cheaper than this wooden DIY handset, it certainly is a pretty novel idea not to mention a pretty unique looking one as well. The goal was not to create a phone to sell, but to “explore and expand the limits” of DIY, so perhaps we may very well start seeing DIY cellphone kits n hobbyist shops one day.