Features:<br> 4G Fixed Wireless Phone - Support GSM850/900/1800/1900Mhz, Caller ID, Save more than 100 SMS on the phone, 7-level headphone volume and silence adjustable, Storage 20 missed call or received calls and the last ten dialed number. More functions will be described in user manual.<br> Powerful battery - Built-in 3000mAh NiMH battery provides up to 2.5hrs of talk time and 150hours standby time.(depending on network environment)<br> Multifunctional Telephone - It not only just a tool to call, but an alarm clock and having FM radio function.<br> Great for Elder People - With big button and the font is clear and age-friendly.<br> External Antenna - External antenna makes the signal receive more stable, get rid of the trouble of disconnection, ensure every call sound quality clear, unimpeded communication.<br> Specification:<br> Model: F317<br> Color: Black, White (Optional)<br> Network Support: GSM<br> Size: 196 x 152 x 51mm<br> Battery: 3.7V 3000mAh<br> GSM Frequency: 850/900/1800/1900MHZ<br> Switching Power Supply: AC:100-240 V; DC:5.00 V,0.65 A<br> Display:128X64 dot array LCD Screen.<br> Package Weight: 700g/26.5oz<br> Package Size: 27 x 19 x 5.5/10.6 x 7.5 x 2.2in<br> Packing List:<br> 1 x Telephone Transmitter<br> 1 x Telephone Receiver<br> 1 x Telephone Line<br> 1 x Battery<br> 1 x User Manual