Description:biotime4 is a full-featured lowest cost device with the excellent matching speed of around 1000 fingers per second. Biotime8 has achieved lowest far and frr in a testing as compared to other 8 devices available in the industry. Traditional usb pen drive backup are now susceptible to virus and other spyware so biotime4 comes with an sd card facility which is used only for biotime4 backuprestores and data transfer options. So making it the most secure device available in the market.Features:lcd screen with big blue background with black characterslcd resolution is 128 x 64 pixelsfar is less than 0.00001%frr is less than 0.001%user capacity is 1000transaction capacity is 30000identification speed is less than 1 secondintelligent self-learning featurescratch proof optical sensorsupports multiple languageshigh-quality voicelow cost1000 user capacity; 30000 transactionsself-learning featuretcpip, usb, sd card backup optionsspecification:usb to pc, tcpip communication options sd card backup options 5v dc power supply size : 188 x 139 x 50 warranty: one year manufacturer warranty