Feature:1. 3G Wireless Phone - Support SIM cards and TF card several GSM frequency, 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 10 dialed number. 9 speed dial keys and redial function, support three-way conference call and so on.2. Fixed Desktop Telephone - Support several GSM frequency including 850/900/1800/1900MHZ.3. Powerful battery - Built-in 1000mAh Li-ion battery provides up to 4hrs of talk time and 3 days standby time.(depending on network environment)4. 10 System Languages Support - Chinese, English, French, Spanish, Portuguese, Russian, German, Burmese, Italian, Arabic, you can set up the language you need.5. 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.Specification:Features: 3G Wireless Phone - Support SIM cards and TF card several GSM frequency, 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 10 dialed number. 9 speed dial keys and redial function, support three-way conference call and so on. Fixed Desktop Telephone - Support several GSM frequency including 850/900/1800/1900MHZ. Powerful battery - Built-in 1000mAh Li-ion battery provides up to 4hrs of talk time and 3 days standby time.(depending on network environment) 10 System Languages Support - Chinese, English, French, Spanish, Portuguese, Russian, German, Burmese, Italian, Arabic, you can set up the language you need. 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.Specification:Model: WK6688-3GSize: 200 x 175 x 65mm Battery: 3.7V 1000mAh GSM Frequency: 850/900/1800/1900MHZPackage Weight: 675g/23.8ozPackage Size: 27 x 19 x 5.5/10.6 x 7.5 x 2.2in Packing List:1 x Telephone1 x Cord of Telephone1 x Power Adapter1 x Battery1 x User Manual Package List:1 x Telephone1 x Cord of Telephone1 x Power Adapter1 x Battery1 x User Manual