Mobile Reader Device Challenge

This product can be handheld, tabletop or wall mounted. External build dimensions: 73mm x 88mm x 32mm. Wall thickness: 1.52mm. Lateral rubber case, will help in case of device falling. Standart screws and 800Mah LiPo battery. (http://www.hobbyking.com/hobbyking/store/__9276__turnigy_800mah_2s_20c_lipo_pack.html) It has feedback sound for accepted (card/Bluetooth) payment, also low battery led and on/off led. The micro USB connector its positioned on the downside. If any additional information or any drawing is needed, please, let me know.