Model KX-TU400EXR , RAM 64MB , Colour Green , GSM 900/1800 , Form Factor Foldable , Screen 2.4" , Screen resolution 240 x 320 , Display technology TFT-LCD , Memory Card Micro SDHC , Number of SIM Single SIM , Talk time 4 hours , Standby time 450 hours , 1xMicro-USB , 1xHeadphones jack , 1xMicroSD Card Slot , 1xSIM card tray , Camera 0.3MP , Phone connections Bluetooth/USB , Dimensions 103 x 53 x 20 mm , Weight 0.106 kg