Beafon S10. Display diagonal: 36.6 mm (1.44 "), Display resolution: 128 x 160 pixels. Data network: GSM, GSM bands supported: 900, 1800 MHz. Headphone connectivity: 2.5 mm. Ringer type: polyphonic. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 900 mAh, Talk time (GSM): 8 h