Doro PhoneEasy 345gsm. Display resolution: 96 x 128 pixels. Data network: GSM, GSM bands supported: 900, 1800, 1900 MHz. Headphone connectivity: 2.5 mm. Ringer type: polyphonic. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 850 mAh, Talk time (GSM): 3.4 h