... i-mate 810-F, New products, Windows Mobile 6.1 Professional , 3G and Quad-band phones2G Network: GSM 850 / 900 / 1800 ... Customization: Download Vibration: Yes Memory Phonebook: Practically unlimited entries and fields, Photocall Call records: Practically unlimited Card slot: No ... : No USB: Yes OS Microsoft: Windows Mobile 6.1 Professional Messaging: SMS, MMS, Email, Push Email, Instant Messaging ...