Features: 1) Original Nokia 6150 / 5110 LCD and motherboard 2) Multi-language selectable (English / Spanish / French) 3) Support SMS and voice function 4) Phonebook and call records 5) Easy to install and easy to maintain 6) Built-in back-up Li-ion battery: 48 hours standby / 3 hours talk 7) Other Nokia mobile phone functions available 8) Clear voice and no noise 9) Caller ID 10 received / 10 dialed / 10 missed records 10) Multiple chord ringer / alarm choice 11) Authentic signal, battery volume, time display 12) Strong signal by high gain antenna (3.5dB - 5dB) 13) IP pre-setting for save call cost 14) Wide-range voltage and low power consumption 15) SIM card locked (optional) 16) Like ordinary hardwire-line telephone operation method Specifications: 1) Air interface standard: GSM 900 / 1,800MHz phase 2+ 2) Frequency ranges: a) GSM 900: i) Transmission: 890 ~ 915MHz ii) Reception: 935 ~ 960MHz b) GSM 1800: i) Transmission: 1,710 ~ 1,785MHz ii) Reception: 1,805 ~ 1,880MHz 3) Channel space: 200KHz 4) Max power: 0.25W / 0.5W 5) Consumption: a) Immobility: less than 25mA b) Transmission: less than 400mA 6) Sensitivity: -105dB 7) Surrounding temperature: -10°C ~ +40°C 8) Relative humidity: 45% ~ 90% (without frost) 9) Atmosphere pressure: 86 ~ 106KPa 10) Environment noise: