Fixed Wireless Phone - Our Desk Phone support dual SIM cards and several GSM frequency including 850/900/1800/1900MHZ and 2G network as well. Multi-function phone - It can speed dial, record 50 groups of call records for your convenience and other regular functions. In addition to the regular functions, there are radio, alarm clock functions. A telephone brings more functions. Multinational system language - Chinese, English, French, Spanish, Portuguese 5 languages provide you to choose, you can set up the language you need. Powerful battery - Built-in 1000mAh li-ion battery provides up to 5 days of battery life without having to worry about suddenly running out of power. 7 levels of brightness adjustment - Depending on the ambient light, you can adjust the display font brightness to clear content display. External antenna - External antenna makes the signal receive more stable, the trouble of disconnection, every call sound quality clear, unimpeded communication. Type: -6588 GSM Frequency: 850/900/1800/1900MHZ Battery: 3.7V 1000mAh Li-ion Battery LCD Backlight Function: Support Voltage: AC220V Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Colour:Black Material:ABS Size:25x20x6.8cm/9.8x7.9x2.7inch Package Contents: 2 x Cordless Phone Desk Phone Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.