Fly DS400 is a mobile phone in the bar form factor. The phone's dimensions and weight are: 109.5 × 47.5 × 16.1 mm and 95.5g. The device is designed to operate on the following networks:GSM 900/1800. It is necessary to note the presence of a digital camera 1.3 MP, GPRS Class 10 (4+1/3+2 slots), 32 - 48 kbps, 3,6 Mbps, Bluetooth v1.2 with A2DP, v 2.0, WAP 2.0/xHTML, Predictive Text Input T9.